lean2/tests/lean/tactic13.lean

22 lines
624 B
Text
Raw Normal View History

Import Int.
(* import("tactic.lua") *)
Variable f : Int -> Int -> Int
(*
refl_tac = apply_tac("Refl")
congr_tac = apply_tac("Congr")
symm_tac = apply_tac("Symm")
trans_tac = apply_tac("Trans")
unfold_homo_eq_tac = unfold_tac("eq")
auto = unfold_homo_eq_tac .. Repeat(OrElse(refl_tac, congr_tac, assumption_tac(), Then(symm_tac, assumption_tac(), now_tac())))
*)
Theorem T1 (a b c : Int) (H1 : a = b) (H2 : a = c) : (f (f a a) b) = (f (f b c) a).
auto.
done.
Theorem T2 (a b c : Int) (H1 : a = b) (H2 : a = c) : (f (f a c)) = (f (f b a)).
auto.
done.
print Environment 2.