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P or Q not P therefore Q. DISJUNCTIVE SYLLOGISM. This box contains and elephant or a butterfly. This box contains and elephant or a butterfly. It is not an elephant. This box contains and elephant or a butterfly. It is not an elephant.
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P or Q not P therefore Q DISJUNCTIVE SYLLOGISM
This box contains and elephant or a butterfly. It is not an elephant.
This box contains and elephant or a butterfly. It is not an elephant. Therefore it is a butterfly.
Herman lives in Phila or Herman lives in Cleveland It is not true that Herman lives in Phila therefore Herman lives in Cleveland
Herman studies or If he takes math then he fails It is not true that Herman studies therefore If he takes math then he fails