Show that the following formula is a tautology: {(pv q) ^ (~p ^ (~q V ~r))} V (~p ^~~q) v (~p ^ ~r)
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Step-by-step explanation:
the saying of the same thing twice over in different words, generally considered to be a fault of style (e.g. they arrived one after the other in succession ).
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Answer:
-23/9÷(-1/6)=23/9×6/1=46/3
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