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Math 120 - Logic

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