Question: Various deduction rules can be used in logical argument and proof Using Truth Tables, demonstrate that the following deduction rules are valid 1 a b

Various deduction rules can be used in logical argument and proof Using Truth Tables, demonstrate that the following deduction rules are valid 1 a b b a ( called modus tollens ) 2 a b a b b ( called law of cases ) 3 a b b c a c ( called hypothetical syllogism )

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1 Modus Tollens Truth Table a b ab ba T T T T T Modus Tollens T F F T F F T T F F F F T T T Conclus... View full answer

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