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Theorem 3p5e8 43101
Description: 3 + 5 = 8. (Contributed by SN, 24-Aug-2026.)
Assertion
Ref Expression
3p5e8 (3 + 5) = 8

Proof of Theorem 3p5e8
StepHypRef Expression
1 3cn 12341 . . 3 3 ∈ ℂ
2 2cn 12335 . . 3 2 ∈ ℂ
31, 2, 1addassi 11238 . 2 ((3 + 2) + 3) = (3 + (2 + 3))
4 3p2e5 12410 . . . 4 (3 + 2) = 5
54oveq1i 7429 . . 3 ((3 + 2) + 3) = (5 + 3)
6 5p3e8 12416 . . 3 (5 + 3) = 8
75, 6eqtri 2788 . 2 ((3 + 2) + 3) = 8
8 2p3e5 43095 . . 3 (2 + 3) = 5
98oveq2i 7430 . 2 (3 + (2 + 3)) = (3 + 5)
103, 7, 93eqtr3ri 2797 1 (3 + 5) = 8
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1570  (class class class)co 7419   + caddc 11122  2c2 12314  3c3 12315  5c5 12317  8c8 12320
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-ext 2737  ax-1cn 11177  ax-addcl 11179  ax-addass 11184
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-clab 2744  df-cleq 2757  df-clel 2840  df-rab 3419  df-v 3459  df-dif 3909  df-un 3911  df-ss 3923  df-nul 4287  df-if 4490  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4875  df-br 5112  df-iota 6496  df-fv 6548  df-ov 7422  df-2 12322  df-3 12323  df-4 12324  df-5 12325  df-6 12326  df-7 12327  df-8 12328
This theorem is used by: (None)
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