lean4-htt/old_tests/tests/lean/1952b.lean
2018-04-10 12:56:55 -07:00

14 lines
394 B
Text
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

structure presheaf_of_types (α : Type*) :=
(F : Π U : set α, Type*)
(res : ∀ (U V : set α) ,
(F U) → (F V))
(Hidem : ∀ U : set α, res U U = (res U U) ∘ (res U U))
-- set_option trace.type_context.is_def_eq true
-- set_option trace.type_context.is_def_eq_detail true
definition presheaf_of_types_pushforward
{β : Type*}
: presheaf_of_types β :=
{ Hidem := λ U, rfl,
}