X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcontribs%2FRELATIONAL%2FNPlus%2Fmonoid.ma;fp=helm%2Fsoftware%2Fmatita%2Fcontribs%2FRELATIONAL%2FNPlus%2Fmonoid.ma;h=0000000000000000000000000000000000000000;hb=da0775e27b362e91ea1453a800bc403781cc2ca3;hp=7a9bb8da047c4ee1443eef83ae70691cc6f5c504;hpb=d9824956d9132109ed5f23380a0a1f9c5181d18a;p=helm.git diff --git a/helm/software/matita/contribs/RELATIONAL/NPlus/monoid.ma b/helm/software/matita/contribs/RELATIONAL/NPlus/monoid.ma deleted file mode 100644 index 7a9bb8da0..000000000 --- a/helm/software/matita/contribs/RELATIONAL/NPlus/monoid.ma +++ /dev/null @@ -1,121 +0,0 @@ -(**************************************************************************) -(* ___ *) -(* ||M|| *) -(* ||A|| A project by Andrea Asperti *) -(* ||T|| *) -(* ||I|| Developers: *) -(* ||T|| The HELM team. *) -(* ||A|| http://helm.cs.unibo.it *) -(* \ / *) -(* \ / This file is distributed under the terms of the *) -(* v GNU General Public License Version 2 *) -(* *) -(**************************************************************************) - - - -include "NPlus/fun.ma". - -(* Monoidal properties ******************************************************) - -theorem nplus_zero_1: ∀q. zero ⊕ q ≍ q. - intros; elim q; clear q; autobatch. -qed. - -theorem nplus_succ_1: ∀p,q,r. p ⊕ q ≍ r → succ p ⊕ q ≍ succ r. - intros; elim H; clear H q r; autobatch. -qed. - -theorem nplus_comm: ∀p, q, x. p ⊕ q ≍ x → ∀y. q ⊕ p ≍ y → x = y. - intros 4; elim H; clear H q x; - [ lapply linear nplus_inv_zero_1 to H1 - | lapply linear nplus_inv_succ_1 to H3. decompose - ]; destruct; autobatch. -qed. - -theorem nplus_comm_rew: ∀p,q,r. p ⊕ q ≍ r → q ⊕ p ≍ r. - intros; elim H; clear H q r; autobatch. -qed. - -theorem nplus_ass: ∀p1, p2, r1. p1 ⊕ p2 ≍ r1 → ∀p3, s1. r1 ⊕ p3 ≍ s1 → - ∀r3. p2 ⊕ p3 ≍ r3 → ∀s3. p1 ⊕ r3 ≍ s3 → s1 = s3. - intros 4; elim H; clear H p2 r1; - [ lapply linear nplus_inv_zero_1 to H2. destruct. - lapply nplus_mono to H1, H3. destruct. autobatch - | lapply linear nplus_inv_succ_1 to H3. decompose. destruct. - lapply linear nplus_inv_succ_1 to H4. decompose. destruct. - lapply linear nplus_inv_succ_2 to H5. decompose. destruct. autobatch - ]. -qed. - -(* Corollaries of functional properties **************************************) - -theorem nplus_inj_2: ∀p, q1, r. p ⊕ q1 ≍ r → ∀q2. p ⊕ q2 ≍ r → q1 = q2. - intros. autobatch. -qed. - -(* Corollaries of nonoidal properties ***************************************) - -theorem nplus_comm_1: ∀p1, q, r1. p1 ⊕ q ≍ r1 → ∀p2, r2. p2 ⊕ q ≍ r2 → - ∀x. p2 ⊕ r1 ≍ x → ∀y. p1 ⊕ r2 ≍ y → x = y. - intros 4; elim H; clear H q r1; - [ lapply linear nplus_inv_zero_2 to H1 - | lapply linear nplus_inv_succ_2 to H3. - lapply linear nplus_inv_succ_2 to H4. decompose. destruct. - lapply linear nplus_inv_succ_2 to H5. decompose - ]; destruct; autobatch. -qed. - -theorem nplus_comm_1_rew: ∀p1,q,r1. p1 ⊕ q ≍ r1 → ∀p2,r2. p2 ⊕ q ≍ r2 → - ∀s. p1 ⊕ r2 ≍ s → p2 ⊕ r1 ≍ s. - intros 4; elim H; clear H q r1; - [ lapply linear nplus_inv_zero_2 to H1. destruct - | lapply linear nplus_inv_succ_2 to H3. decompose. destruct. - lapply linear nplus_inv_succ_2 to H4. decompose. destruct - ]; autobatch. -qed. - -(* -theorem nplus_shift_succ_sx: \forall p,q,r. - (p \oplus (succ q) \asymp r) \to (succ p) \oplus q \asymp r. - intros. - lapply linear nplus_inv_succ_2 to H as H0. - decompose. destruct. auto new timeout=100. -qed. - -theorem nplus_shift_succ_dx: \forall p,q,r. - ((succ p) \oplus q \asymp r) \to p \oplus (succ q) \asymp r. - intros. - lapply linear nplus_inv_succ_1 to H as H0. - decompose. destruct. auto new timeout=100. -qed. - -theorem nplus_trans_1: \forall p,q1,r1. (p \oplus q1 \asymp r1) \to - \forall q2,r2. (r1 \oplus q2 \asymp r2) \to - \exists q. (q1 \oplus q2 \asymp q) \land p \oplus q \asymp r2. - intros 2; elim q1; clear q1; intros; - [ lapply linear nplus_inv_zero_2 to H as H0. - destruct. - | lapply linear nplus_inv_succ_2 to H1 as H0. - decompose. destruct. - lapply linear nplus_inv_succ_1 to H2 as H0. - decompose. destruct. - lapply linear H to H4, H3 as H0. - decompose. - ]; apply ex_intro; [| auto new timeout=100 || auto new timeout=100 ]. (**) -qed. - -theorem nplus_trans_2: ∀p1,q,r1. p1 ⊕ q ≍ r1 → ∀p2,r2. p2 ⊕ r1 ≍ r2 → - ∃p. p1 ⊕ p2 ≍ p ∧ p ⊕ q ≍ r2. - intros 2; elim q; clear q; intros; - [ lapply linear nplus_inv_zero_2 to H as H0. - destruct - | lapply linear nplus_inv_succ_2 to H1 as H0. - decompose. destruct. - lapply linear nplus_inv_succ_2 to H2 as H0. - decompose. destruct. - lapply linear H to H4, H3 as H0. - decompose. - ]; autobatch. apply ex_intro; [| auto new timeout=100 || auto new timeout=100 ]. (**) -qed. -*)