def test_equality_subs2(): f = Function('f') x = abc.x eq = Eq(f(x)**2, 16) assert bool(eq.subs({f(x): 3})) is False assert bool(eq.subs({f(x): 4})) is True
def test_equality_subs1(): f = Function('f') x = abc.x eq = Eq(f(x)**2, x) res = Eq(Integer(16), x) assert eq.subs({f(x): 4}) == res