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Math 120 - Logic

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Across
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I will visit my aunt or my friend. I will visit my aunt. Therefore, I will not visit my friend.
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The part of DeMorgan's Law that is equivalent to not p OR not q
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All, each, every, no, none, some, there exists, at least one
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Compound statement that is always true.
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Sentence that can be determined to be true or false.
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I will buy a new vehicle or I will go on vacation. I did not buy a new vehicle. Therefore, I will go on vacation.
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For the conditional if p then q, the statement if not q then not p is known as the __________
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The part of DeMorgan's Law that is equivalent to not p and not q
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The "OR" connective. Only false when all the simple statements are false.
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Two statements that have the same truth values for all combinations of the simple statements.
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A compound statement that is always false.
Down
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If p then q q is necessary for p p is sufficient for q p only if q q, if p
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The connective: p if and only if q Only evaluates to TRUE if p and q have the same logical value
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For the conditional: if p then q the statement if q then p is known as the __________
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An invalid argument; an error in reasoning that leads to an invalid argument
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This is equivalent to p AND not q
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For the conditional: If p then q The statement If not p then not q is known as the ___________.
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The connective If p then q Only evaluates to FALSE when p is TRUE and q is FALSE
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The AND connective: Only evaluates to TRUE if all simple statements are true.