7 lines
322 B
Text
7 lines
322 B
Text
--
|
|
open sigma
|
|
inductive List (T : Type) : Type := nil {} : List T | cons : T → List T → List T open List notation h :: t := cons h t notation `[` l:(foldr `,` (h t, cons h t) nil) `]` := l
|
|
check ∃ (A : Type₁) (x y : A), x = y
|
|
check ∃ (x : num), x = 0
|
|
check Σ (x : num), x = 10
|
|
check Σ (A : Type₁), List A
|