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Prove informally, by employing correct definitions and principles of reasoning, that the

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maggiemaggie | 06:06 Fri 22nd Oct 2010 | Arts & Literature
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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 to employ
the definition of interpretation.)
2/ If set S implies formula A , then S together with formula B (i.e. S ! {B}) also implies A .
prev Construct natural deduction proofs for each of the following
  
next name of a book
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Avatar Image woofgang
maggie maggie...too much homework?
06:11 Fri 22nd Oct 2010
Avatar Image squarebear
May I suggest you have a word with your tutor if you are finding your course too difficult.
09:01 Fri 22nd Oct 2010

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Prove informally, by employing correct definitions and principles of reasoning, that the

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