∀ x y, x < y ⇒ x ≤ y

Theorem lt_to_le : forall (x:nat), forall (y:nat), (lt x y) -> le x y.

theorem lt_to_le : \forall (x:nat). \forall (y:nat). ((lt) x y) -> (le) x y.

theorem lt_to_le : forall (x:nat.nat) , forall (y:nat.nat) , ((((nat.lt_) ) (x)) (y)) -> (((nat.le_) ) (x)) (y).

lt_to_le : LEMMA (FORALL(x:nat_sttfa.sttfa_nat):(FORALL(y:nat_sttfa.sttfa_nat):(nat_sttfa.lt(x)(y) => nat_sttfa.le(x)(y))))

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