
theorem Th2:
  for A,B,C being non empty set, f being Function of A, Funcs(B,C)
for a being Element of A, b being Element of B
      holds (uncurry f).(a,b) = f.a.b
proof
  let A,B,C be non empty set, f be Function of A, Funcs(B,C);
  let a be Element of A, b be Element of B;
  dom f = A & dom(f.a) = B by FUNCT_2:def 1;
  hence thesis by FUNCT_5:38;
end;
