Theorem otex 5447

Description: An ordered triple of classes is a set. (Contributed by NM, 3-Apr-2015.)

Assertion

Ref	Expression
otex	⊢ ⟨𝐴, 𝐵, 𝐶⟩ ∈ V

Proof of Theorem otex

Step	Hyp	Ref	Expression
1		df-ot 4598	. 2 ⊢ ⟨𝐴, 𝐵, 𝐶⟩ = ⟨⟨𝐴, 𝐵⟩, 𝐶⟩
2		opex 5445	. 2 ⊢ ⟨⟨𝐴, 𝐵⟩, 𝐶⟩ ∈ V
3	1, 2	eqeltri 2859	1 ⊢ ⟨𝐴, 𝐵, 𝐶⟩ ∈ V

Syntax hints:   ∈ wcel 2143  Vcvv 3455  ⟨cop 4595  ⟨cotp 4597

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-ext 2735  ax-sep 5257  ax-pr 5404

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-ex 1810  df-sb 2097  df-clab 2742  df-cleq 2755  df-clel 2838  df-rab 3417  df-v 3457  df-un 3910  df-in 3912  df-ss 3922  df-sn 4590  df-pr 4592  df-op 4596  df-ot 4598

This theorem is referenced by:  euotd  5496  ralxp3f  8129  xpord3lem  8141  xpord3pred  8144  splval  14784  splcl  14785  idaval  18110  idaf  18115  eldmcoa  18117  coaval  18120  mamufval  22549  msrval  36030  msrf  36034  mapdhval  42518  mndtcco  50383