Questions: Construct a truth table for the following statement. [ sim mathrmp wedge sim mathrmq ] Complete the truth table. p q sim p sim q sim p wedge sim q --------------- T T V V nabla T F V V V F T V v v F F V V v

Construct a truth table for the following statement.
[
sim mathrmp wedge sim mathrmq
]

Complete the truth table.

p  q  sim p  sim q  sim p wedge sim q
---------------
T  T  V  V  nabla 
T  F  V  V  V 
F  T  V  v  v 
F  F  V  V  v
Transcript text: Construct a truth table for the following statement. \[ \sim \mathrm{p} \wedge \sim \mathrm{q} \] Complete the truth table. \begin{tabular}{|c|c|c|c|c|c|} \hline p & q & $\sim p$ & $\sim q$ & \multicolumn{2}{|l|}{$\sim p \wedge \sim q$} \\ \hline T & T & V & V & $\nabla$ & \\ \hline T & F & V & V & V & \\ \hline F & T & V & v & v & \\ \hline F & F & V & V & v & \\ \hline \end{tabular}
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Solution

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Solution Steps

To construct a truth table for the statement \(\sim \mathrm{p} \wedge \sim \mathrm{q}\), we need to evaluate the negation of each variable (\(\sim \mathrm{p}\) and \(\sim \mathrm{q}\)) and then determine the conjunction (\(\wedge\)) of these negations for all possible truth values of \(\mathrm{p}\) and \(\mathrm{q}\). The truth table will have columns for \(\mathrm{p}\), \(\mathrm{q}\), \(\sim \mathrm{p}\), \(\sim \mathrm{q}\), and \(\sim \mathrm{p} \wedge \sim \mathrm{q}\).

Step 1: Define the Variables

Let \( p \) and \( q \) be the two boolean variables. The possible truth values for these variables are:

  • \( p = \text{True}, q = \text{True} \)
  • \( p = \text{True}, q = \text{False} \)
  • \( p = \text{False}, q = \text{True} \)
  • \( p = \text{False}, q = \text{False} \)
Step 2: Calculate Negations

We compute the negations of \( p \) and \( q \):

  • \( \sim p \) (not \( p \)):

    • For \( p = \text{True} \), \( \sim p = \text{False} \)
    • For \( p = \text{False} \), \( \sim p = \text{True} \)
  • \( \sim q \) (not \( q \)):

    • For \( q = \text{True} \), \( \sim q = \text{False} \)
    • For \( q = \text{False} \), \( \sim q = \text{True} \)
Step 3: Calculate the Conjunction

Next, we compute the conjunction \( \sim p \wedge \sim q \):

  • For \( p = \text{True}, q = \text{True} \): \( \sim p = \text{False}, \sim q = \text{False} \) → \( \sim p \wedge \sim q = \text{False} \)
  • For \( p = \text{True}, q = \text{False} \): \( \sim p = \text{False}, \sim q = \text{True} \) → \( \sim p \wedge \sim q = \text{False} \)
  • For \( p = \text{False}, q = \text{True} \): \( \sim p = \text{True}, \sim q = \text{False} \) → \( \sim p \wedge \sim q = \text{False} \)
  • For \( p = \text{False}, q = \text{False} \): \( \sim p = \text{True}, \sim q = \text{True} \) → \( \sim p \wedge \sim q = \text{True} \)
Step 4: Compile the Truth Table

The complete truth table is as follows:

\[ \begin{array}{|c|c|c|c|c|} \hline p & q & \sim p & \sim q & \sim p \wedge \sim q \\ \hline \text{True} & \text{True} & \text{False} & \text{False} & \text{False} \\ \text{True} & \text{False} & \text{False} & \text{True} & \text{False} \\ \text{False} & \text{True} & \text{True} & \text{False} & \text{False} \\ \text{False} & \text{False} & \text{True} & \text{True} & \text{True} \\ \hline \end{array} \]

Final Answer

The truth table for the statement \( \sim p \wedge \sim q \) is complete, showing that the conjunction is only true when both \( p \) and \( q \) are false. Thus, the final answer is:

\[ \boxed{\text{True only when } p = \text{False} \text{ and } q = \text{False}} \]

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