Great Summary and examples of Modern Symbolic Logic

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Deductiveargumentsarecerta.in

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Adeductiueargumentisvalidifandonlyifwhenevert.ae
premisesaretruetheconclusionmust.be
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andthecondusiontobefal.se

, premisesmustbetruel.Tnenseeifonclusioncanbefal.se
Validityisaboutformorstructureismtaboutact.ua

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g ument . i s
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contradic.tn/tsentenceisatautologyfAsentenceis
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aluaysfalse.oritcanneverbefal.se
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validz.AlthepremisesaretrueForm.content.andtrutha.lt matter