Show that ` ( p vee q) ^^ ( ~ p ^^ ~ q) ` is a contradion .

Explanation

To show that \( (p \vee q) \land (\neg p \land \neg q) \) is a contradiction, we will analyze the expression step by step.

### Step 1: Understand the components of the expression
The expression consists of two parts:
1. \( p \vee q \) (p or q)
2. \( \neg p \land \neg q \) (not p and not q)

### Step 2: Analyze the first part \( p \vee q \)
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