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Mirrors > Home > MPE Home > Th. List > otex | Structured version Visualization version GIF version |
Description: An ordered triple of classes is a set. (Contributed by NM, 3-Apr-2015.) |
Ref | Expression |
---|---|
otex | ⊢ 〈𝐴, 𝐵, 𝐶〉 ∈ V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ot 4638 | . 2 ⊢ 〈𝐴, 𝐵, 𝐶〉 = 〈〈𝐴, 𝐵〉, 𝐶〉 | |
2 | opex 5466 | . 2 ⊢ 〈〈𝐴, 𝐵〉, 𝐶〉 ∈ V | |
3 | 1, 2 | eqeltri 2825 | 1 ⊢ 〈𝐴, 𝐵, 𝐶〉 ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2099 Vcvv 3471 〈cop 4635 〈cotp 4637 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-ext 2699 ax-sep 5299 ax-nul 5306 ax-pr 5429 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-sb 2061 df-clab 2706 df-cleq 2720 df-clel 2806 df-v 3473 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-nul 4324 df-if 4530 df-sn 4630 df-pr 4632 df-op 4636 df-ot 4638 |
This theorem is referenced by: euotd 5515 ralxp3f 8142 xpord3lem 8154 xpord3pred 8157 splval 14734 splcl 14735 idaval 18047 idaf 18052 eldmcoa 18054 coaval 18057 mamufval 22300 msrval 35148 msrf 35152 mapdhval 41197 mndtcco 48097 |
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