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Select the correct answerWhat rules of inference are used in this argument?“It is either colder than Himalaya today or the pollution is harmful. It is hotter than Himalaya today. Therefore, the pollution is harmful.”OptionsModus ponensConjunctionDisjunctive syllogismHypothetical syllogism

Question

Select the correct answerWhat rules of inference are used in this argument?“It is either colder than Himalaya today or the pollution is harmful. It is hotter than Himalaya today. Therefore, the pollution is harmful.”OptionsModus ponensConjunctionDisjunctive syllogismHypothetical syllogism

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Solution

The correct answer is Disjunctive syllogism. This rule of inference is used when we have a statement in the form "P or Q" and we know that "not P" is true, so we can conclude that "Q" is true. In this argument, "It is either colder than Himalaya today or the pollution is harmful" is in the form of "P or Q". "It is hotter than Himalaya today" implies "not P". Therefore, we can conclude that "the pollution is harmful" or "Q" is true.

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