lean4-htt/tests/lean/run/lambda_simp.lean
2017-03-09 18:41:19 -08:00

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