lean2/tests/lean/run/rewriter1.lean

import data.nat
open algebra

theorem test {A : Type} [s : comm_ring A] (a b c : A) : a + b + c = a + c + b :=
begin
  rewrite [add.assoc, {b + _}add.comm, -add.assoc]
end

print definition test
test(tests/lean/run): add basic rewriter test 2015-02-04 23:30:18 +00:00			`import data.nat`
			`open algebra`

			`theorem test {A : Type} [s : comm_ring A] (a b c : A) : a + b + c = a + c + b :=`
			`begin`
feat(frontends/lean/parse_rewrite_tactic): cleanup rewrite tactic notation Make a rewrite command sequence explicit. 2015-02-05 04:16:24 +00:00			`rewrite [add.assoc, {b + _}add.comm, -add.assoc]`
test(tests/lean/run): add basic rewriter test 2015-02-04 23:30:18 +00:00			`end`

			`print definition test`