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Creating a theorem

  1. Jul 15, 2011 #1
    Given 4 axioms in real Nos:

    1) 1x = x ,for all x

    2) x+0 = x ,for all x

    3) (x+y)z = xz+yz ,for all x,y,z

    4) xy =yx ,for all x,y

    The cancellation theorem : [tex]\forall[x+y = x+z\Longrightarrow y=z][/tex]

    And two laws of logic:

    1) The law of Universal Elimination

    2) The law of substitution.

    Can we create a theorem?.

    If yes ,what that theorem may be??
     
  2. jcsd
  3. Jul 16, 2011 #2
    Is this homework help or general inquiry? If homework help, what progress have you made before we answer? If simply general inquiry, I'll be more than happy to jump right in!
     
  4. Jul 16, 2011 #3
    General inquiry.
     
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