Lesson 3-4 Flashcards

1
Q

Compound proposition which is always TRUE

A

TAUTOLOGY

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2
Q

Compound proposition which is always FALSE

A

CONTRADICTION

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3
Q

Compound proposition which is sometimes TRUE and sometimes FALSE.

A

CONTINGENCY

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4
Q

A compound proposition is satisfiable if there is at least one TRUE result in its truth table.

A

Satisfiability

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5
Q

Not even a single TRUE result in its truth table.

A

Unsatisfiability

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6
Q

A compound proposition is ______ when it is a tautology.

A

Valid

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7
Q

A compound proposition is _______ when it is either a contradiction or contingency.

A

Invalid

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