The Method of Proving Invalidity by Assigning Truth Values to Statements

Multiple Choice

The method of proving invalidity by assigning truth values to statements in a shortened truth table:

A) can become more cumbersome than the full truth table method because of the time and energy involved
B) works only with modus tollens and modus ponens
C) is resorted to for convenience-it saves time and space
D) is not as accurate as using Venn diagrams