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Questions › JNU › JNU SSS 2010 › Q71
1 mark, −0.5Mathematics › Logic and proof techniques › Propositional logic and conditionalsEasyabout 1 min

JNU SSS 2010 Question 71: Logic and proof techniques

Let XXX and YYY be statements. If we know that XXX implies YYY, then we can also conclude that

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Let X and Y be statements. If we know that X implies Y, then we can also conclude that (A) X is true, and Y is also true (B) if X is false, then Y is false (C) if Y is true, then X is true (D) if Y is false, then X is false

Logic and proof techniques has come up 73 times in 3 exams since 2004.

What this question tests

This question is on Propositional logic and conditionals, part of Logic and proof techniques in Mathematics.

Statements, truth values and how if-then statements are negated, reversed and chained.

TestStop has 15 past-paper questions on this subtopic.

Practise Logic and proof techniquesMore on Propositional logic and conditionals

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Question from the JNU SSS 2010 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.