Posted by **Dawn** on Thursday, November 8, 2012 at 5:59pm.

Directions: Define the necessary symbols, rewrite the argument in symbolic form, and us a truth table to determine whether the argument is valid. If the argument is invalid, interpret the specific circumstances that cause the argument to be invalid.

Problem:

1. All pesticides are harmful to the environment.

2. No fertilizer is a pesticide.

________________________________________

Therefore, no pesticide is harmful to the environment.

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