X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground_2%2Fsteps%2Frtc_max.ma;h=a6e0efa87c5cb4ec93ceaaff7820e23c2b2ab82f;hp=e35ae558a80ef26d7e0e8a4785caf840b99731d7;hb=25c634037771dff0138e5e8e3d4378183ff49b86;hpb=bd53c4e895203eb049e75434f638f26b5a161a2b diff --git a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_max.ma b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_max.ma index e35ae558a..a6e0efa87 100644 --- a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_max.ma +++ b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_max.ma @@ -12,9 +12,8 @@ (* *) (**************************************************************************) -include "ground_2/xoa/ex_3_2.ma". include "ground_2/xoa/ex_6_8.ma". -include "ground_2/steps/rtc_shift.ma". +include "ground_2/steps/rtc.ma". (* RT-TRANSITION COUNTER ****************************************************) @@ -58,69 +57,3 @@ theorem max_assoc: associative … max. * #ri1 #rs1 #ti1 #ts1 * #ri2 #rs2 #ti2 #ts2 * #ri3 #rs3 #ti3 #ts3 (max_O2 n) /2 width=1 by isrt_max/ -qed. - -lemma isrt_max_idem1: ∀n,c1,c2. 𝐑𝐓❪n,c1❫ → 𝐑𝐓❪n,c2❫ → 𝐑𝐓❪n,c1∨c2❫. -#n #c1 #c2 #H1 #H2 >(idempotent_max n) /2 width=1 by isrt_max/ -qed. - -(* Inversion properties with test for constrained rt-transition counter *****) - -lemma isrt_inv_max: ∀n,c1,c2. 𝐑𝐓❪n,c1 ∨ c2❫ → - ∃∃n1,n2. 𝐑𝐓❪n1,c1❫ & 𝐑𝐓❪n2,c2❫ & (n1 ∨ n2) = n. -#n #c1 #c2 * #ri #rs #H -elim (max_inv_dx … H) -H #ri1 #rs1 #ti1 #ts1 #ri2 #rs2 #ti2 #ts2 #_ #_ #H1 #H2 #H3 #H4 -elim (max_inv_O3 … H1) -H1 /3 width=5 by ex3_2_intro, ex1_2_intro/ -qed-. - -lemma isrt_O_inv_max: ∀c1,c2. 𝐑𝐓❪0,c1 ∨ c2❫ → ∧∧ 𝐑𝐓❪0,c1❫ & 𝐑𝐓❪0,c2❫. -#c1 #c2 #H -elim (isrt_inv_max … H) -H #n1 #n2 #Hn1 #Hn2 #H -elim (max_inv_O3 … H) -H #H1 #H2 destruct -/2 width=1 by conj/ -qed-. - -lemma isrt_inv_max_O_dx: ∀n,c1,c2. 𝐑𝐓❪n,c1 ∨ c2❫ → 𝐑𝐓❪0,c2❫ → 𝐑𝐓❪n,c1❫. -#n #c1 #c2 #H #H2 -elim (isrt_inv_max … H) -H #n1 #n2 #Hn1 #Hn2 #H destruct -lapply (isrt_inj … Hn2 H2) -c2 #H destruct // -qed-. - -lemma isrt_inv_max_eq_t: ∀n,c1,c2. 𝐑𝐓❪n,c1 ∨ c2❫ → eq_t c1 c2 → - ∧∧ 𝐑𝐓❪n,c1❫ & 𝐑𝐓❪n,c2❫. -#n #c1 #c2 #H #Hc12 -elim (isrt_inv_max … H) -H #n1 #n2 #Hc1 #Hc2 #H destruct -lapply (isrt_eq_t_trans … Hc1 … Hc12) -Hc12 #H -<(isrt_inj … H … Hc2) -Hc2 -