Question: For the first - order formula = - > ( ( ( ) ( ) = ) ( ( ) ( ) = ) )

For the first-order formula =->((()()=)(()()=))
, choose ALL that apply.
Question 3Answer
a.
An abstraction is (p->(rq))
b.
This is a tautology
c.
There are two occurrences of z, all of which are bound
d.
This is an axiom of predicate logic

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