11 lines
162 B
Text
11 lines
162 B
Text
#print [simp] default
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constant addz (a : nat) : 0 + a = a
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attribute [simp] addz
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open tactic
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def ex : (λ a b : nat, 0 + a) = (λ a b, a) :=
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by simp
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#print ex
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