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Theorem ovsn2 50303
Description: The operation value of a singleton of an ordered triple is the last member. (Contributed by Zhi Wang, 22-Oct-2025.)
Hypothesis
Ref Expression
ovsn.1 𝐶 ∈ V
Assertion
Ref Expression
ovsn2 (𝐴{⟨𝐴, 𝐵, 𝐶⟩}𝐵) = 𝐶

Proof of Theorem ovsn2
StepHypRef Expression
1 ovsn.1 . 2 𝐶 ∈ V
2 ovsng2 50301 . 2 (𝐶 ∈ V → (𝐴{⟨𝐴, 𝐵, 𝐶⟩}𝐵) = 𝐶)
31, 2ax-mp 5 1 (𝐴{⟨𝐴, 𝐵, 𝐶⟩}𝐵) = 𝐶
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1570   ∈ wcel 2147  Vcvv 3454  {csn 4588  ⟨cotp 4863  (class class class)co 7451
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 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-10 2180  ax-12 2216  ax-ext 2735  ax-sep 5255  ax-pr 5398
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-nf 1817  df-sb 2102  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2839  df-ral 3081  df-rex 3091  df-rab 3417  df-v 3456  df-ss 3901  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-sn 4589  df-pr 4591  df-op 4841  df-ot 4864  df-uni 4873  df-br 5109  df-opab 5174  df-id 5553  df-xp 5664  df-rel 5665  df-cnv 5666  df-co 5667  df-dm 5668  df-iota 6520  df-fun 6568  df-fv 6574  df-ov 7454
This theorem is used by:  isinito2lem  50964  isinito3  50966  mndtchom  51053  incat  51070  setc1onsubc  51071
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