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Thread: simple math question

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hi,
i'm starting learn math, have @ red underlined statement screenshot of book, me statement seems suspicious , hypocritical since same argument can used "it therefore cannot true. must false" make truth-table wrong. don't find so? comments/explanation?
attached images attached images

i think means since implies b, if false implies b false. since false, b not evaluated, can't conclusion hypothsis. since b cannot implied a, has true. believe implication eluding you. took me 4 times through come conclusion.

man, awful book have there.


Forum The Ubuntu Forum Community Ubuntu Specialised Support Development & Programming Programming Talk [SOLVED] simple math question


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