15 lines
452 B
Text
15 lines
452 B
Text
-- Canonicalizing subsingletons
|
|
import algebra.ring
|
|
open algebra
|
|
|
|
set_option pp.all true
|
|
universes l j k
|
|
constants (A : Type.{l}) (s : comm_ring A)
|
|
attribute s [instance]
|
|
constants (x y : A) (P : A → Type.{j}) (P_ss : ∀ a, subsingleton (P a))
|
|
constants (f : Π a, P a → A) (Px1 Px2 Px3 : P x)
|
|
constants (g : A → A → A)
|
|
attribute P_ss [instance]
|
|
|
|
#simplify eq env 0 g (f x Px1) (f x Px2)
|
|
#simplify eq env 0 g (f x Px1) (g (f x Px2) (f x Px3))
|