# 2 - 3/14 Conversion Switching the subject term with the...

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Unformatted text preview: 3/14 Conversion Switching the subject term with the predicate term Ex- no dogs are cats • No cats are dogs All A are B A Proposition • All B are A A proposition’s converse No A are B E Proposition No B are A SAME THING ^ E Proposition Converse Some A are B • I Proposition ( X in middle) Some B are A • I Prop. Converse (X in middle) Some A are not B • O Prop. ( X in A) Some B are not A • O Prop. Converse (X in A – R side) T rue and False T- all cats are animals F- Therefore, all animals are cats Some animals are not dogs T Therefore, some dogs are not animals F A + O, it’s concave is ALWAYS invalid I + E, always VALID since they are the same I llicit Conversion A and O It’s converse is false They are unrelated statements, not logically related Obversion Step 1- change quality without changing quality Ex- all S are P No S are P Some S are P Some S are not P • ALL...
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2 - 3/14 Conversion Switching the subject term with the...

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