Questions: Translate the argument into symbolic form. Then determine whether the argument is valid or invalid. You may use a truth table or, if applicable, compare the argument's symbolic form to a standard valid or invalid form.
You got an A in Math, or I am happy. Today I'm happy. Therefore, Today you did not get an A in Math. (i) Click the icon to view tables of standard valid and invalid forms of arguments.
Let p represent "Today you got an A in Math," and let q represent "Today I'm happy." Select the correct choice below and fill in the answer box with the symbolic form of the argument. (Type the terms of your expression in the same order as they appear in the original expression.) A. The argument is invalid. In symbolic form the argument is B. The argument is valid. In symbolic form the argument is
Transcript text: Translate the argument into symbolic form. Then determine whether the argument is valid or invalid. You may use a truth table or, if applicable, compare the argument's symbolic form to a standard valid or invalid form.
You got an A in Math, or I am happy.
Today I'm happy.
$\therefore$ Today you did not get an A in Math.
(i) Click the icon to view tables of standard valid and invalid forms of arguments.
Let p represent "Today you got an A in Math," and let q represent "Today I'm happy."
Select the correct choice below and fill in the answer box with the symbolic form of the argument.
(Type the terms of your expression in the same order as they appear in the original expression.)
A. The argument is invalid. In symbolic form the argument is $\square$
B. The argument is valid. In symbolic form the argument is $\square$
Solution
Solution Steps
To solve this problem, we need to translate the given statements into symbolic form using the provided variables \( p \) and \( q \). Then, we will determine the validity of the argument by comparing it to standard forms or using a truth table.
Translate the statements into symbolic form:
"You got an A in Math, or I am happy" translates to \( p \lor q \).
"Today I'm happy" translates to \( q \).
"Today you did not get an A in Math" translates to \( \neg p \).
Combine these statements into an argument:
Premises: \( p \lor q \) and \( q \)
Conclusion: \( \neg p \)
Determine the validity of the argument by constructing a truth table or comparing it to standard forms.
Step 1: Translate Statements into Symbolic Form
We define the following:
Let \( p \) represent "Today you got an A in Math."
Let \( q \) represent "Today I'm happy."
The statements can be translated as follows:
"You got an A in Math, or I am happy" translates to \( p \lor q \).
"Today I'm happy" translates to \( q \).
"Today you did not get an A in Math" translates to \( \neg p \).
Step 2: Formulate the Argument
The argument can be structured as:
Premises:
\( p \lor q \)
\( q \)
Conclusion: \( \neg p \)
Step 3: Determine Validity of the Argument
To assess the validity, we analyze the premises and conclusion:
The argument is valid if the conjunction of the premises and the negation of the conclusion is unsatisfiable:
\[
(p \lor q) \land q \land \neg p
\]
Upon evaluation, we find that this expression is satisfiable, indicating that there are scenarios where the premises hold true while the conclusion does not.
Final Answer
The argument is invalid. In symbolic form, the argument is \( (p \lor q), q \vdash \neg p \).