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Theorem 6p2e8 12329
Description: 6 + 2 = 8. (Contributed by NM, 11-May-2004.)
Assertion
Ref Expression
6p2e8 (6 + 2) = 8

Proof of Theorem 6p2e8
StepHypRef Expression
1 df-2 12238 . . . . 5 2 = (1 + 1)
21oveq2i 7372 . . . 4 (6 + 2) = (6 + (1 + 1))
3 6cn 12266 . . . . 5 6 ∈ ℂ
4 ax-1cn 11090 . . . . 5 1 ∈ ℂ
53, 4, 4addassi 11149 . . . 4 ((6 + 1) + 1) = (6 + (1 + 1))
62, 5eqtr4i 2763 . . 3 (6 + 2) = ((6 + 1) + 1)
7 df-7 12243 . . . 4 7 = (6 + 1)
87oveq1i 7371 . . 3 (7 + 1) = ((6 + 1) + 1)
96, 8eqtr4i 2763 . 2 (6 + 2) = (7 + 1)
10 df-8 12244 . 2 8 = (7 + 1)
119, 10eqtr4i 2763 1 (6 + 2) = 8
Colors of variables: wff setvar class
Syntax hints:   = wceq 1542  (class class class)co 7361  1c1 11033   + caddc 11035  2c2 12230  6c6 12234  7c7 12235  8c8 12236
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2709  ax-1cn 11090  ax-addcl 11092  ax-addass 11097
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2716  df-cleq 2729  df-clel 2812  df-rab 3391  df-v 3432  df-dif 3893  df-un 3895  df-ss 3907  df-nul 4275  df-if 4468  df-sn 4569  df-pr 4571  df-op 4575  df-uni 4852  df-br 5087  df-iota 6449  df-fv 6501  df-ov 7364  df-2 12238  df-3 12239  df-4 12240  df-5 12241  df-6 12242  df-7 12243  df-8 12244
This theorem is referenced by:  6p3e9  12330  6t3e18  12743  83prm  17087  1259lem2  17096  1259lem5  17099  2503lem2  17102  2503lem3  17103  4001lem1  17105  log2ub  26929  hgt750lem2  34815  3exp7  42509  3cubeslem3l  43135  resqrtvalex  44093  imsqrtvalex  44094  lhe4.4ex1a  44777  sin5tlem5  47344  fmtno5faclem3  48059
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