Definitions, Conditional Statements, and Laws of Logic

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•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a conditional statement?
Back
A conditional statement is a logical statement that has two parts: a hypothesis (if part) and a conclusion (then part). It is often written in the form 'If P, then Q'.
2.
FLASHCARD QUESTION
Front
What is the Law of Detachment?
Back
The Law of Detachment states that if a conditional statement is true and its hypothesis is true, then the conclusion must also be true.
3.
FLASHCARD QUESTION
Front
What is the contrapositive of a conditional statement?
Back
The contrapositive of a conditional statement 'If P, then Q' is 'If not Q, then not P'. It is logically equivalent to the original statement.
4.
FLASHCARD QUESTION
Front
What is a counterexample?
Back
A counterexample is an example that disproves a conjecture or statement. It shows that the statement is not always true.
5.
FLASHCARD QUESTION
Front
What is the Law of Syllogism?
Back
The Law of Syllogism states that if 'If P, then Q' is true and 'If Q, then R' is true, then 'If P, then R' is also true.
6.
FLASHCARD QUESTION
Front
What does it mean for angles to be congruent?
Back
Two angles are congruent if they have the same measure.
7.
FLASHCARD QUESTION
Front
What is a hypothesis in a conditional statement?
Back
The hypothesis is the 'if' part of a conditional statement, representing the condition that must be met.
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