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maggiemaggie

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maggiemaggie
Prove informally, by employing correct definitions and principles of reasoning, that the following are true. 1/ Every formula implies itself. (That is, A implies A . Hint: For this one you will need...
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maggiemaggie
118.2 p&(q&r) .'. q 118.4 .'. ¬(p&(q&¬p)) 118.10 q .'.¬(¬p&¬q) 122.3* p " q, ¬p " r .'.¬q " r 122.7* p " q, ¬(p " r)...

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