invalid

  1. B

    Gödel's theorem is invalid his G statement is banned by axiom of the system he uses

    Godels theorem is invalid as his G statement is banned by an axiom of the system he uses to prove his theorem http://gamahucherpress.yellowgum.com/wp-content/uploads/GODEL5.pdf a flaw in theorem Godels sentence G is outlawed by the very axiom he uses to prove his theorem ie the axiom of...
  2. E

    Invalid proof, but can't understand why

    Short version: as stated in the title, I know the proof MUST be wrong, and I'd be very grateful if someone could point out the flaw(s) in my logic. https://goo.gl/osZr60 it's about 5 pages long, but not dense at all, so it should be a light and rather fast reading. Thanks in advance. Longer...
  3. J

    Valid and Invalid Arguments

    I have an argument that does not seem to fall within the rules of inference. I need to identify the validity of the argument. This is the first time I'm using the ? symbol ("therefore"). I assume I can use it this way. I've converted my English statements as below. I have been given (3)...
  4. B

    Godels incompleteness theorems are invalid ie illegitimate

    It is argued that Godels incompleteness theorems are invalid ie illegitimate for 5 reasons: he uses the axiom of reducibility- which is invalid ie illegitimate,he constructs impredicative statement which is invalid ie illegitimate ,he cant tell us what makes a mathematic statement true, he...
  5. R

    This one is killing me. Valid or invalid argument.

    Someone mentioned the law of transitivity, but I am still trying to figure that out. Determine whether the argument is valid or invalid. Loretta's hobby is stamp collecting. If her husband likes to fish, then Loretta's hobby is not stamp collecting. If her husband does not like to fish...
  6. R

    Logic simple argument. Valid or invalid and why?

    All dogs love to bury bones. Py does not love to bury bones. ----------------------------------- Py is not a dog.
  7. B

    Valid and Invalid Substitutions During Integration

    Suppose that I am attempting to perform an indefinite integration, that all functions involved are well behaved, and that the integration involves only one variable, x, which is real. Further suppose that I attempt to make a variable substitution, as is usually done when performing integration...