lean2/tests/lean/run/592.lean

import data.nat
open nat algebra

definition foo (a b : nat) := a * b

example (a : nat) : foo a 0 = 0 :=
calc a * 0 = 0 : by rewrite mul_zero
fix(frontends/lean/elaborator): problem with 'calc' proofs discussed at issue #592 2015-05-11 20:21:45 +00:00			`import data.nat`
refactor(library/data/nat/basic): mark some theorems as protected to avoid overloading 2015-10-14 19:27:09 +00:00			`open nat algebra`
fix(frontends/lean/elaborator): problem with 'calc' proofs discussed at issue #592 2015-05-11 20:21:45 +00:00
			`definition foo (a b : nat) := a * b`

			`example (a : nat) : foo a 0 = 0 :=`
			`calc a * 0 = 0 : by rewrite mul_zero`