6 lines
228 B
Text
6 lines
228 B
Text
id : ?M_1 → ?M_1
|
|
trans : (?M_1 → ?M_1 → Prop) → Prop
|
|
symm : (?M_1 → ?M_1 → Prop) → Prop
|
|
equivalence : (?M_1 → ?M_1 → Prop) → Prop
|
|
λ (A : Type) (R : A → A → Prop),
|
|
and (and (refl R) (symm R)) (trans R)
|