10 lines
174 B
Text
10 lines
174 B
Text
prelude
|
|
definition Prop : Type.{1} := Type.{0}
|
|
|
|
inductive or (A B : Prop) : Prop
|
|
| intro_left : A → or
|
|
| intro_right : B → or
|
|
|
|
check or
|
|
check or.intro_left
|
|
check or.rec
|