INDUCTIVE DEFINITION ex4_2 () [ A0:Set, A1:Set, :A0→A1→Prop, :A0→A1→Prop, :A0→A1→Prop, :A0→A1→Prop ]
OF ARITY Prop
BUILT FROM:
     ex4_2_intro: ∀x0:A0.∀x1:A1.(P0 x0 x1)→(P1 x0 x1)→(P2 x0 x1)→(P3 x0 x1)→(ex4_2 A0 A1 P0 P1 P2 P3)