Mercurial > urweb
comparison src/coq/Axioms.v @ 616:d26d1f3acfd6
Semantics for ordered rows only
author | Adam Chlipala <adamc@hcoop.net> |
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date | Wed, 18 Feb 2009 09:32:17 -0500 |
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children | be88d2d169f6 |
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615:3c77133afd9a | 616:d26d1f3acfd6 |
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1 (* Copyright (c) 2009, Adam Chlipala | |
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26 *) | |
27 | |
28 Require Import Syntax. | |
29 | |
30 Set Implicit Arguments. | |
31 | |
32 | |
33 Axiom ext_eq : forall dom ran (f g : forall x : dom, ran x), | |
34 (forall x, f x = g x) | |
35 -> f = g. | |
36 | |
37 Theorem ext_eq_forall : forall dom (f g : forall x : dom, Type), | |
38 (forall x, f x = g x) | |
39 -> (forall x, f x) = (forall x, g x). | |
40 intros. | |
41 rewrite (ext_eq _ f g H); reflexivity. | |
42 Qed. | |
43 | |
44 Theorem ext_eq_forallS : forall dom (f g : forall x : dom, Set), | |
45 (forall x, f x = g x) | |
46 -> (forall x, f x) = (forall x, g x). | |
47 intros. | |
48 rewrite (ext_eq _ f g H); reflexivity. | |
49 Qed. |