9 lines
276 B
Text
9 lines
276 B
Text
constants (A : Type.{1}) (f : A → A → A) (x y z : A) (g : A → A)
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lemma foo [simp] : f x y = y := sorry
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lemma bar [simp] : g y = z := sorry
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open tactic
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set_option trace.simplifier.failure true
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example : g (f x y) = z := by simp
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example : g (f x (f x y)) = z := by simp
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