Mercurial > cpdt > repo
comparison src/LogicProg.v @ 445:0650420c127b
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author | Adam Chlipala <adam@chlipala.net> |
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date | Wed, 01 Aug 2012 17:31:56 -0400 |
parents | 8077352044b2 |
children | 9fbf3b4dac29 |
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444:0d66f1a710b8 | 445:0650420c127b |
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944 Hint Rewrite f_g. | 944 Hint Rewrite f_g. |
945 | 945 |
946 Lemma f_f_f' : forall x, f (f (f x)) = f x. | 946 Lemma f_f_f' : forall x, f (f (f x)) = f x. |
947 intros; autorewrite with core. | 947 intros; autorewrite with core. |
948 (** [[ | 948 (** [[ |
949 | |
950 ============================ | 949 ============================ |
951 g (g (g x)) = g x | 950 g (g (g x)) = g x |
952 | 951 |
953 subgoal 2 is: | 952 subgoal 2 is: |
954 P x | 953 P x |