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Theorem times2i 9414
Description: A number times 2. (Contributed by NM, 11-May-2004.)
Hypothesis
Ref Expression
2times.1  |-  A  e.  CC
Assertion
Ref Expression
times2i  |-  ( A  x.  2 )  =  ( A  +  A
)

Proof of Theorem times2i
StepHypRef Expression
1 2times.1 . 2  |-  A  e.  CC
2 times2 9412 . 2  |-  ( A  e.  CC  ->  ( A  x.  2 )  =  ( A  +  A ) )
31, 2ax-mp 5 1  |-  ( A  x.  2 )  =  ( A  +  A
)
Colors of variables: wff set class
Syntax hints:    = wceq 1402    e. wcel 2209  (class class class)co 6075   CCcc 8167    + caddc 8172    x. cmul 8174   2c2 9334
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220  ax-resscn 8261  ax-1cn 8262  ax-1re 8263  ax-icn 8264  ax-addcl 8265  ax-addrcl 8266  ax-mulcl 8267  ax-mulcom 8270  ax-mulass 8272  ax-distr 8273  ax-1rid 8276  ax-cnre 8280
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-br 4126  df-iota 5332  df-fv 5380  df-ov 6078  df-2 9342
This theorem is referenced by:  3t2e6  9440  4t2e8  9442  6t2e12  9859  7t2e14  9864  8t2e16  9870  9t2e18  9877
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