23 lines
473 B
Text
23 lines
473 B
Text
open nat
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set_option blast.init_depth 10
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set_option blast.max_depth 10
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lemma l1 (a : nat) : zero = succ a → a = a → false :=
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by blast
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lemma l2 (p : Prop) (a : nat) : zero = succ a → a = a → p :=
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by blast
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lemma l3 (a b : nat) : succ (succ a) = succ (succ b) → a = b :=
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by blast
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lemma l4 (a b : nat) : succ a = succ b → a = b :=
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by blast
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lemma l5 (a b c : nat) : succ (succ a) = succ (succ b) → c = c :=
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by blast
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reveal l3 l4 l5
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print l3
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print l4
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print l5
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