Question: Test these propositions for whether they are tautologies ( x)( y)( z)((x=y & y=z) --> x=z) ( x)( y)(x=y --> y=x)

Test these propositions for whether they are tautologies

  1. ( x)( y)( z)((x=y & y=z) --> x=z)
  2. ( x)( y)(x=y --> y=x)

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