nat.le_n
∀ n, n ≤ n
Axiom le_n : forall (n:nat), le n n
axiom le_n : \forall (n:nat). (le) n n
axiom le_n : forall (n:nat.nat) , (((nat.le_) ) (n)) (n)
le_n : AXIOM (FORALL(n:nat_sttfa.sttfa_nat):nat_sttfa.le(n)(n))
Printing for OpenTheory is not working at the moment.