lean4-htt/tests/lean/coe5.lean
2017-03-09 18:41:19 -08:00

23 lines
315 B
Text

open tactic
attribute [instance]
meta def expr_to_app : has_coe_to_fun expr :=
{ F := λ e, expr → expr,
coe := expr.app }
meta constants f a b : expr
#check f a
#check f a b
#check f a b a
set_option pp.coercions false
#check f a b a
set_option pp.all true
set_option pp.coercions true
#check f a b