def testBetaConv(self):
t = Comb(Abs("x", Ta, Bound(0)), x)
self.assertEqual(Thm.beta_conv(t), Thm.mk_equals(t, x))
def testBetaConv(self):
cv = beta_conv()
t = lf(x)
self.assertEqual(cv.eval(thy, t), Thm.beta_conv(t))
self.assertEqual(thy.check_proof(cv.get_proof_term(thy, t).export()),
Thm.beta_conv(t))
def testTryConv(self):
cv = try_conv(beta_conv())
t = lf(x)
self.assertEqual(cv.eval(thy, t), Thm.beta_conv(t))
self.assertEqual(cv.eval(thy, x), Thm.reflexive(x))
def eval(self, thy, args, ths):
th = ths[0]
assert Term.is_equals(th.prop), "beta_conv_rhs"
rhs = th.prop.rhs
return Thm.transitive(th, Thm.beta_conv(rhs))
