Construct truth tables for the following wffs. Note any tautologies or contradictions. a. ((A ightarrow B)

Construct truth tables for the following wffs. Note any tautologies or contradictions.
a. \((A \rightarrow B) \leftrightarrow A^{\prime} \vee B\)
b. \((A \wedge B) \vee C \rightarrow A \wedge(B \vee C)\)
c. \(A \wedge\left(A^{\prime} \vee B^{\prime} \right)^{\prime}\)
d. \(A \wedge B \rightarrow A^{\prime}\)
e. \((A \rightarrow B) \rightarrow[(A \vee C) \rightarrow(B \vee C)]\)