Solution to Example 5

Test the validity of the following argument.

Socrates has a new toga or he didn't waste 30 drachmas.
Plato has a pound of feta cheese or a quart of olive oil.
Socrates wasted 30 drachmas and Plato doesn't have a pound of feta cheese.
Therefore, Socrates has a new toga and Plato has a quart of olive oil.

A. Valid
B. Invalid

We will use a truth table to test the validity of the argument.
Let
p: Socrates has a new toga.
q: Socrates wastes 30 drachmas.
r: Plato has a pound of feta cheese.
s: Plato has a quart of olive oil.

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