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Theorem 3p2e5 9379
Description: 3 + 2 = 5. (Contributed by NM, 11-May-2004.)
Assertion
Ref Expression
3p2e5 (3 + 2) = 5

Proof of Theorem 3p2e5
StepHypRef Expression
1 df-2 9296 . . . . 5 2 = (1 + 1)
21oveq2i 6061 . . . 4 (3 + 2) = (3 + (1 + 1))
3 3cn 9312 . . . . 5 3 ∈ ℂ
4 ax-1cn 8220 . . . . 5 1 ∈ ℂ
53, 4, 4addassi 8282 . . . 4 ((3 + 1) + 1) = (3 + (1 + 1))
62, 5eqtr4i 2256 . . 3 (3 + 2) = ((3 + 1) + 1)
7 df-4 9298 . . . 4 4 = (3 + 1)
87oveq1i 6060 . . 3 (4 + 1) = ((3 + 1) + 1)
96, 8eqtr4i 2256 . 2 (3 + 2) = (4 + 1)
10 df-5 9299 . 2 5 = (4 + 1)
119, 10eqtr4i 2256 1 (3 + 2) = 5
Colors of variables: wff set class
Syntax hints:   = wceq 1398  (class class class)co 6050  1c1 8128   + caddc 8130  2c2 9288  3c3 9289  4c4 9290  5c5 9291
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2214  ax-resscn 8219  ax-1cn 8220  ax-1re 8221  ax-addrcl 8224  ax-addass 8229
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-rex 2526  df-v 2815  df-un 3215  df-in 3217  df-ss 3224  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-br 4110  df-iota 5312  df-fv 5360  df-ov 6053  df-2 9296  df-3 9297  df-4 9298  df-5 9299
This theorem is referenced by:  3p3e6  9380  2exp5  13130  2exp16  13135  2lgsoddprmlem3d  15983
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