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Theorem 2p6e8 43462
Description: 2 + 6 = 8. (Contributed by SN, 24-Aug-2026.)
Assertion
Ref Expression
2p6e8 (2 + 6) = 8

Proof of Theorem 2p6e8
StepHypRef Expression
1 2cn 12431 . . 3 2 ∈ ℂ
2 4cn 12441 . . 3 4 ∈ ℂ
31, 1, 2addassi 11332 . 2 ((2 + 2) + 4) = (2 + (2 + 4))
4 2p2e4 12490 . . . 4 (2 + 2) = 4
54oveq1i 7440 . . 3 ((2 + 2) + 4) = (4 + 4)
6 4p4e8 12510 . . 3 (4 + 4) = 8
75, 6eqtri 2786 . 2 ((2 + 2) + 4) = 8
8 2p4e6 43460 . . 3 (2 + 4) = 6
98oveq2i 7441 . 2 (2 + (2 + 4)) = (2 + 6)
103, 7, 93eqtr3ri 2795 1 (2 + 6) = 8
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1569  (class class class)co 7430   + caddc 11216  2c2 12410  4c4 12412  6c6 12414  8c8 12416
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1944  ax-6 2001  ax-7 2042  ax-8 2148  ax-9 2156  ax-ext 2735  ax-1cn 11271  ax-addcl 11273  ax-addass 11278
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-sb 2101  df-clab 2742  df-cleq 2755  df-clel 2839  df-rab 3417  df-v 3456  df-ss 3901  df-dif 4050  df-un 4154  df-nul 4282  df-if 4486  df-sn 4589  df-pr 4591  df-op 4839  df-uni 4871  df-br 5107  df-iota 6501  df-fv 6555  df-ov 7433  df-2 12418  df-3 12419  df-4 12420  df-5 12421  df-6 12422  df-7 12423  df-8 12424
This theorem is used by: (None)
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