∀ n m, n = ((n + m) - m)

Theorem minus_plus_m_m : forall (n:nat), forall (m:nat), logic.eq (nat) n (minus (plus n m) m).

theorem minus_plus_m_m : \forall (n:nat). \forall (m:nat). (eq) (nat) n ((minus) ((plus) n m) m).

theorem minus_plus_m_m : forall (n:nat.nat) , forall (m:nat.nat) , (((logic.eq_) (nat.nat)) (n)) ((((nat.minus) ) ((((nat.plus) ) (n)) (m))) (m)).

minus_plus_m_m : LEMMA (FORALL(n:nat_sttfa.sttfa_nat):(FORALL(m:nat_sttfa.sttfa_nat):logic_sttfa_th.eq[nat_sttfa.sttfa_nat](n)(nat_sttfa.minus(nat_sttfa.plus(n)(m))(m))))

Printing for OpenTheory is not working at the moment.