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Activity for 8500 Ward‭

Type On... Excerpt Status Date
Edit Post #290637 Initial revision 10 months ago
Question Are these introductory logic textbooks wrong to teach ‘unless’ = ‘or’?
Colin Fine answered that >Unless" does not equal "or" 'directly and intuitively'. This contradicts the textbooks beneath. Who is correct? >Usually, "P unless Q" is "symbolized as P ∨ Q. Stephen Cole Kleene, Mathematical logic (1967 - Dover ed 2002), page 64. ![](https://i.imgur.com/9lIn...
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10 months ago