X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fwww%2Flambdadelta%2Fbasic_2.html;h=951778d1e289212b14d9d995b7823c31330dec76;hb=1e89c373698e2b5e55661291f25dc5238e9f13fd;hp=4482123c58e42daceb31c4cb4f66bd5bfeb0b8c6;hpb=c07e9b0a3e65c28ca4154fec76a54a9a118fa7e1;p=helm.git diff --git a/helm/www/lambdadelta/basic_2.html b/helm/www/lambdadelta/basic_2.html index 4482123c5..a281ef3ab 100644 --- a/helm/www/lambdadelta/basic_2.html +++ b/helm/www/lambdadelta/basic_2.html @@ -6,8 +6,8 @@ - - lambdadelta version 2 + + \lambda\delta home page @@ -16,1120 +16,849 @@
- [lambdadelta home] + [\lambda\delta home]
-
cic:/matita/lambdadelta/basic_2/ (λδ version 2)
+
cic:/matita/lambdadelta/basic_2/ (core λδ version 2)
- [Spacer] + [Spacer]
-
System's Syntax and Behavior
-
This is a summary of the "block structure" - of the System's syntactic items and reductions. -
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domainblockleaderapplicator (with →θ)*reduction→ζ *reference *
{X | Γ ⊢ X : W}local typed abstraction *Γ ⊢ +λWⓐV→βno#i
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+
+ home local typed declaration **Γ ⊢ -λWⓐV→βno#i
+ + news + + specification +
global typed declaration ***Γ ⊢ pλWnonono$p
+
native type annotation *Γ ⊢ ⓝWnonoyesno
{X | Γ ⊢ X = V}local abbreviation *Γ ⊢ +δVnolocal →δyes#i
+ + documentation + + implementation +
local definition **Γ ⊢ -δVnolocal →δno#i
+ + foreword + + milestones + + version 2 + (background - core - applications)
global definition ***Γ ⊢ pδVnoglobal →δno$p + version 2 + + helena + + Open Symbolic Notation (OSN) +
nosort ****Γ ⊢ ⋆knononono + citations + + visibility + + version 1 + (background - core)(static HELM directory) + version 1 + + library + (static LDDL directory)
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* In terms only. + +
Summary of the Specification [butterfly] +
+
Here is a numerical account of the specification's contents and its timeline.
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categoryobjects + categoryobjects
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sizesfiles198 characters414004nodes1213218sizesfiles177characters181483nodes952913
propositionstheorems89lemmas877total966propositionstheorems49lemmas633total682
conceptsdeclared45defined79total124conceptsdeclared24defined42total66
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    +
    Stage "B"
    +
    • - In progress. + Ongoing. Context-sensitive subject equivalence for native type assignment.
    -
      +
      Stage "A2": "Extending the Applicability Condition"
      +
        +
      • + 2017 January 17. + Confluence for parallel r-transition on referred entries of local environments. +
      • +
      +
        +
      • + 2016 September 15. + Confluence for context-sensitive parallel r-transition on terms. +
      • +
      +
        +
      • + 2016 April 16. + Grammatical component reconstructed: + grammar, relocation, s_transition, s_computation, static + (anniversary milestone). +
      • +
      +
        +
      • + 2016 March 25. + Relocation with reference transforming maps (rtmap). +
      • +
      +
      • - In progress. - Closure of context-sensitive extended computation - for native validity. + 2015 October 9. + λδ version 2A2 is started.
      -
        +
        Stage "A1": "Extending the Applicability Condition"
        +
        • - In progress. - Reaxiomatized β-reductum as in extended β-reduction + 2015 August 27. + λδ version 2A1 appears too complex and is dismissed.
        -
          +
          • - 2013 July 20. - Context-sensitive extended strong normalization + 2014 October 28. + λδ version 2A1 is released. +
          • +
          +
            +
          • + 2014 September 9. + Iterated static type assignment defined (more elegantly) + as a primitive notion. +
          • +
          +
            +
          • + 2014 June 18. + Preservation of stratified native validity + for context-sensitive computation on terms. +
          • +
          +
            +
          • + 2014 June 9. + Strong qrst-normalization for simply typed terms.
          -
            +
              +
            • + 2014 April 16. + Lazy equivalence on local environments + added as q-step to rst-computation on closures + (anniversary milestone). +
            • +
            +
              +
            • + 2014 January 20. + Parametrized slicing of local environments + comprises both versions of this operation + (one from basic_1, the other used in basic_2 till now). +
            • +
            +
            • - 2013 April 16. - Reaxiomatized substitution and reduction + 2013 August 7. + Passive support for global environments. +
            • +
            +
              +
            • + 2013 July 27. + Reaxiomatized β-reductum as in rt-reduction. +
            • +
            +
              +
            • + 2013 July 20. + Context-sensitive strong rt-normalization + for simply typed terms. +
            • +
            +
              +
            • + 2013 April 16. + Reaxiomatized substitution and reduction commute with respect to subclosure (anniversary milestone).
            -
              +
              • - 2013 March 16. + 2013 March 16. Mutual recursive preservation of stratified native validity - for hyper computation on closures. + for rst-computation on closures.
              -
                +
                • - 2012 October 16. + 2012 October 16. Confluence for context-free parallel reduction on closures.
                -
                  +
                  • - 2012 July 26. - Term binders polarized to control ζ-reduction. + 2012 July 26. + Term binders polarized to control ζ-reduction (not released).
                  -
                    +
                    • - 2012 April 16. + 2012 April 16. Context-sensitive subject equivalence for atomic arity assignment (anniversary milestone).
                    -
                      +
                      • - 2012 March 15. + 2012 March 15. Context-sensitive strong normalization for simply typed terms.
                      -
                        +
                        • - 2012 January 27. + 2012 January 27. Support for abstract candidates of reducibility.
                        -
                          +
                          • - 2011 September 21. + 2011 September 21. Confluence for context-sensitive parallel reduction on terms.
                          -
                            +
                            • - 2011 September 6. + 2011 September 6. Confluence for context-free parallel reduction on terms.
                            -
                              +
                              • - 2011 April 17. - Specification starts. + 2011 April 17. + λδ version 2 is started.
                              - -
                              Logical Structure of the Specification
                              -
                              The source files are grouped in planes and components - according to the following table. - A notation file covering the whole specification is provided. - The notation for the relations or functions introduced in each file - is shown in parentheses (? are placeholders). +
                              Logical Structure of the Specification [butterfly] +
                              +
                              This table reports the specification's components and their planes.
                              -
                              +
                              - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + - - - - - - - + + + + - - - - - - - - - - - + + - - - - - - - - - - + + - - - - - - - - - - + + + - - - - - - - - - - - - - + + - - - - - - - - - - - - - - + + + - - - - - - - - - - + + + + - - - - - - + + + - - - - - - + + + - - - - - - + + + - - - - - - + + + - - - - - - + + + - - - - - - + + + - - - - - - + + + - - - + + + - - - - - - - - - + + + + - - - - - - - + + - - - - - - - - - - - - - + + + + - - - - - - + + - - + + + - - - - - - - - - - - - - - - - - - + + - - - - - - + + + - - - - - - - - - - - - - - + + - - - + + + - - - - - - - - - + + + - - - - - - + + + + - - - + + + - - - - - - - - - + + + - - - - - - + + + - - - - - - + + - - - - - - - - - - - - - - - - - - - - - - - + + + - - - - - - + + + + - - - - - - + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + - -
                              componentplanefiles -
                              -
                              -
                              -
                              -
                              -
                              dynamic typing"big tree" parallel computationyprs ( ? ⊢ ⦃?,?⦄ ≥[g] ⦃?,?⦄ )yprs_yprsygt ( ? ⊢ ⦃?,?⦄ >[g] ⦃?,?⦄ )ygt_ygt
                              -
                              -
                              "big tree" parallel reductionypr ( ? ⊢ ⦃?,?⦄ ≽[g] ⦃?,?⦄ )ysc ( ? ⊢ ⦃?,?⦄ ≻[g] ⦃?,?⦄ ) -
                              -
                              -
                              -
                              -
                              -
                              local env. ref. for stratified native validitylsubsv ( ? ⊢ ? ¡⊑[?] ? )lsubsv_ldrop lsubsv_lsuba lsubsv_ssta lsubsv_dxprs lsubsv_cpcs lsubsv_snv -
                              -
                              -
                              -
                              -
                              -
                              stratified native validitysnv ( ⦃?,?⦄ ⊢ ? ¡[?] )snv_lift snv_lpss snv_aaa snv_ssta snv_sstas snv_ssta_lpr snv_lpr snv_cpcs -
                              -
                              -
                              -
                              equivalencelocal env. ref. for stratified static type assignmentlsubss ( ? •⊑[?] ? )lsubss_ldrop lsubss_ssta lsubss_cpcs -
                              -
                              -
                              -
                              -
                              -
                              context-sensitive equivalencecpcs ( ? ⊢ ? ⬌* ? )cpcs_lpss cpcs_aaa cpcs_cprs cpcs_cpcs -
                              -
                              -
                              -
                              conversioncontext-sensitive conversioncpc ( ? ⊢ ? ⬌ ? )cpc_cpc -
                              -
                              -
                              -
                              computationcontext-sensitive extended evaluationcpxe ( ⦃?,?⦄ ⊢ ➡*[?] 𝐍⦃?⦄ ) + componentplanefiles
                              +
                              +
                              -
                              -
                              context-sensitive evaluationcpre ( ? ⊢ ➡* 𝐍⦃?⦄ )cpre_cpre + rt-transitiont-bound context-sensitive rt-transitionlfpr ( ⦃?,?⦄ ⊢ ➡[?,?] ? )lfpr_length lfpr_drops lfpr_fqup lfpr_frees lfpr_aaa lfpr_lfpx lfpr_lfpr
                              +
                              -
                              -
                              strongly normalizing computationcsn_vector ( ? ⊢ ⬊* ? )csn_tstc_vector csn_aaa +
                              -
                              -
                              +
                              + cpr ( ⦃?,?⦄ ⊢ ? ➡[?] ? )cpr_drops
                              csn ( ? ⊢ ⬊* ? )csn_alt ( ? ⊢ ⬊⬊* ? )csn_lift csn_lpx +
                              +
                              decomposed extended computationdxprs ( ⦃?,?⦄ ⊢ ? •*➡*[?] ? )dxprs_lift dxprs_lpss dxprs_aaa dxprs_dxprs +
                              + cpm ( ⦃?,?⦄ ⊢ ? ➡[?,?] ? )cpm_simple cpm_drops cpm_lsubr cpm_cpx
                              -
                              -
                              context-sensitive extended computationlpxs ( ⦃?,?⦄ ⊢ ➡*[?] ? )lpxs_alt ( ⦃?,?⦄ ⊢ ➡➡*[?] ? )lpxs_ldrop lpxs_aaa lpxs_cpxs lpxs_lpxs +
                              +
                              + uncounted context-sensitive rt-transitionlfpx ( ⦃?,?⦄ ⊢ ⬈[?,?] ? )lfpx_length lfpx_drops lfpx_fqup lfpx_frees lfpx_aaa
                              cpxs ( ⦃?,?⦄ ⊢ ? ➡*[?] ? )cpxs_tstc cpxs_tstc_vector cpxs_lift cpxs_aaa cpxs_cpxs -
                              -
                              +
                              +
                              context-sensitive computationlprs ( ? ⊢ ➡* ? )lprs_alt ( ? ⊢ ➡➡* ? )lprs_ldrop lprs_lpss lprs_cprs lprs_lprs +
                              + cpx ( ⦃?,?⦄ ⊢ ? ⬈[?] ? )cpx_simple cpx_drops cpx_lsubr
                              -
                              -
                              cprs ( ? ⊢ ? ➡* ?)cprs_lift cprs_lpss cprs_cprs -
                              -
                              +
                              -
                              -
                              local env. ref. for abstract candidates of reducibilitylsubc ( ? ⊑[?] ? )lsubc_ldrop lsubc_ldrops lsubc_lsuba -
                              -
                              +
                              + counted context-sensitive rt-transitioncpg ( ⦃?,?⦄ ⊢ ? ⬈[?,?] ? )cpg_simple cpg_drops cpg_lsubr
                              support for abstract computation propertiesacpacp_cr ( ⦃?,?⦄ ϵ[?] 〚?〛 )acp_aaa +
                              reductioncontext-sensitive extended normal formscnx ( ⦃?,?⦄ ⊢ 𝐍[?]⦃?⦄ )cnx_lift cnx_crx cnx_cix + static typingparametersshsd
                              +
                              +
                              context-sensitive extended reductionlpx ( ⦃?,?⦄ ⊢ ➡[?] ? )lpx_ldrop lpx_aaa + restricted ref. for atomic arity assignmentlsuba ( ? ⊢ ? ⫃⁝ ? )lsuba_drops lsuba_lsubr lsuba_aaa lsuba_lsuba
                              +
                              -
                              -
                              +
                              cpx ( ⦃?,?⦄ ⊢ ? ➡[?] ? )cpx_lift cpx_cix + atomic arity assignmentaaa ( ⦃?,?⦄ ⊢ ? ⁝ ? )aaa_drops aaa_fqus aaa_lfeq aaa_aaa
                              +
                              +
                              context-sensitive extended irreducible formscix ( ⦃?,?⦄ ⊢ 𝐈[?]⦃?⦄ )cix_append cix_lift + equivalence for closures on referred entriesffeq ( ⦃?,?,?⦄ ≡ ⦃?,?,?⦄ )ffeq_freq
                              +
                              +
                              context-sensitive extended reducible formscrx ( ⦃?,?⦄ ⊢ 𝐑[?]⦃?⦄ )crx_append crx_lift + equivalence for local environments on referred entrieslfeq ( ? ≡[?] ? )lfeq_length lfeq_lreq lfeq_fqup lfeq_lfeq
                              +
                              +
                              local env. ref. for extended reductionlsubx ( ? ⓝ⊑ ? )lsubx_lsubx + generic extension on referred entrieslfxs ( ? ⦻*[?,?] ? )lfxs_length lfxs_drops lfxs_fqup lfxs_lfxs
                              +
                              +
                              context-sensitive normal formscnr ( ? ⊢ 𝐍⦃?⦄ )cnr_lift cnr_crr cnr_cir + restricted ref. for context-sensitive free variableslsubf ( ⦃?,?⦄ ⫃𝐅* ⦃?,?⦄ )lsubf_frees
                              +
                              +
                              context-sensitive reductionlpr ( ? ⊢ ➡ ? )lpr_ldrop lpr_lpss lpr_lpr + context-sensitive free variablesfrees ( ? ⊢ 𝐅*⦃?⦄ ≡ ? )frees_weight frees_lreq frees_drops frees_fqup frees_frees
                              +
                              +
                              + restricted ref. for local env.lsubr ( ? ⫃ ? )lsubr_length lsubr_drops lsubr_lsubr
                              cpr ( ? ⊢ ? ➡ ? )cpr_lift cpr_cir -
                              -
                              +
                              -
                              -
                              context-sensitive irreducible formscir ( ? ⊢ 𝐈⦃?⦄ )cir_append cir_lift + s-computationiterated structural successor for closuresfqus ( ⦃?,?,?⦄ ⊐* ⦃?,?,?⦄ )fqus_weight fqus_drops fqus_fqup fqus_fqus
                              +
                              +
                              context-sensitive reducible formscrr ( ? ⊢ 𝐑⦃?⦄ )crr_append crr_lift +
                              + fqup ( ⦃?,?,?⦄ ⊐+ ⦃?,?,?⦄ )fqup_weight fqup_drops fqup_fqup
                              unfoldrestricted parallel computationlpqs ( ? ⊢ ➤* ? )lpqs_ldrop lpqs_cpqs lpqs_lpqs -
                              -
                              +
                              -
                              -
                              -
                              -
                              cpqs ( ? ⊢ ? ➤* ? )cpqs_lift + s-transitionstructural successor for closuresfquq ( ⦃?,?,?⦄ ⊐⸮ ⦃?,?,?⦄ )fquq_length fquq_weight
                              +
                              +
                              unfoldunfold ( ? ⊢ ? ⧫* ? ) +
                              + fqu ( ⦃?,?,?⦄ ⊐ ⦃?,?,?⦄ )fqu_length fqu_weight
                              +
                              + relocationgeneric slicing for local environmentsdrops_vector ( ⬇*[?,?] ? ≡ ? ) ( ⬇*[?] ? ≡ ? )
                              iterated stratified static type assignmentsstas ( ⦃?,?⦄ ⊢ ? •*[?] ? )sstas_lift sstas_lpss sstas_aaa sstas_sstas +
                              +
                              static typingstratified static type assignmentssta ( ⦃?,?⦄ ⊢ ? •[?,?] ? )ssta_lift ssta_lpss ssta_aaa ssta_ssta +
                              +
                              -
                              -
                              local env. ref. for atomic arity assignmentlsuba ( ? ⁝⊑ ? )lsuba_ldrop lsuba_aaa lsuba_lsuba + drops ( ⬇*[?,?] ? ≡ ? ) ( ⬇*[?] ? ≡ ? )drops_lstar drops_weight drops_length drops_ceq drops_lexs drops_lreq drops_drops
                              +
                              +
                              atomic arity assignmentaaa ( ? ⊢ ? ⁝ ? )aaa_lift aaa_lifts aaa_lpss aaa_aaa + generic relocation for termslifts_vector ( ⬆*[?] ? ≡ ? )lifts_lifts_vector
                              +
                              +
                              parametersshsd +
                              -
                              -
                              substitutionparallel substitutionlpss ( ? ⊢ ▶* ? )lpss_ldrop lpss_cpss lpss_lpss + lifts ( ⬆*[?] ? ≡ ? )lifts_simple lifts_weight lifts_lifts
                              +
                              +
                              + ranged equivalence for local environmentslreq ( ? ≡[?] ? )lreq_length lreq_lreq
                              cpss ( ? ⊢ ? ▶* ? )cpss_lift -
                              -
                              +
                              +
                              local env. ref. for substitutionlsubr ( ? ⊑ ? )lsubr_lsubr + generic entrywise extensionlexs ( ? ⦻*[?,?,?] ? )lexs_length lexs_lexs
                              +
                              -
                              -
                              iterated structural successor for closuresfsups ( ⦃?,?⦄ ⊃* ⦃?,?⦄ )fsups_fsups + grammarappend for local environmentsappend ( ? @@ ? )append_length
                              +
                              +
                              + context-sensitive equivalences for termsceqceq_ceq
                              fsupp ( ⦃?,?⦄ ⊃+ ⦃?,?⦄ )fsupp_fsupp -
                              -
                              +
                              +
                              generic local env. slicingldrops ( ⇩*[?] ? ≡ ? )ldrops_ldrop ldrops_ldrops + same top term structuretsts ( ? ≂ ? )tsts_tsts tsts_vector
                              +
                              +
                              generic term relocationlifts_vector ( ⇧*[?] ? ≡ ? )lifts_lift_vector + closurescl_weight ( ♯{?,?,?} )cl_restricted_weight ( ♯{?,?} )
                              +
                              -
                              -
                              +
                              lifts ( ⇧*[?] ? ≡ ? )lifts_lift lifts_lifts + internal syntaxgenv
                              +
                              -
                              -
                              support for generic relocationgr2 ( @⦃?,?⦄ ≡ ? )gr2_plus ( ? + ? )gr2_minus ( ? ▭ ? ≡ ? )gr2_gr2
                              relocationstructural successor for closuresfsup ( ⦃?,?⦄ ⊃ ⦃?,?⦄ )fsupq ( ⦃?,?⦄ ⊃⸮ ⦃?,?⦄ )fsupq_alt +
                              +
                              global env. slicinggdrop ( ⇩[?] ? ≡ ? )gdrop_gdrop +
                              + lenvlenv_weight ( ♯{?} )lenv_length ( |?| )
                              -
                              -
                              basic local env. slicingldrop ( ⇩[?,?] ? ≡ ? )ldrop_append ldrop_lpx_sn ldrop_ldrop +
                              +
                              termterm_weight ( ♯{?} )term_simple ( 𝐒⦃?⦄ )term_vector ( Ⓐ?.? )
                              +
                              basic term relocationlift_vector ( ⇧[?,?] ? ≡ ? )lift_lift_vector +
                              + item
                              -
                              -
                              -
                              -
                              lift ( ⇧[?,?] ? ≡ ? )lift_lift -
                              -
                              -
                              -
                              grammarpointwise extension of a relationlpx_snlpx_sn_tc lpx_sn_lpx_sn -
                              -
                              -
                              -
                              -
                              -
                              same top term constructortstc ( ? ≃ ? )tstc_tstc tstc_vector -
                              -
                              -
                              -
                              -
                              -
                              closurescl_shift ( ? @@ ? )cl_weight ( ♯{?,?} ) -
                              -
                              -
                              -
                              -
                              -
                              internal syntaxgenv -
                              -
                              -
                              -
                              -
                              -
                              -
                              -
                              -
                              -
                              lenvlenv_weight ( ♯{?} )lenv_length ( |?| )lenv_append ( ? @@ ? )
                              -
                              -
                              -
                              -
                              termterm_weight ( ♯{?} )term_simple ( 𝐒⦃?⦄ )term_vector
                              +
                              -
                              -
                              item -
                              -
                              -
                              -
                              +
                              +
                              external syntaxaarity + external syntaxaarity
                              +
                              +
                              - -
                              Physical Structure of the Specification
                              -
                              The source files are grouped in directories, - one for each component. -
                              -
                              - [Spacer] +
                              + [Spacer]

                              @@ -1154,6 +883,6 @@

                              -
                              Last update: Sun, 21 Jul 2013 00:11:48 +0200
                              - +
                              Last update: Sat, 21 Jan 2017 15:35:26 +0100
                              +