Description: Weak deduction theorem
that eliminates a hypothesis , making it
become an antecedent. We assume that a proof exists for when
the class variable is replaced with a specific class .
The hypothesis should be assigned to the inference, and the
inference's hypothesis eliminated with elimhyp 2380. If the inference
has other hypotheses with class variable , these can be
kept by assigning keephyp 2386 to them. For more information, see the
Deduction Theorem http://us.metamath.org/mpegif/mmdeduction.html. |