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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 4564 | . 2 ⊢ 〈𝐴, 𝐵, 𝐶〉 = 〈〈𝐴, 𝐵〉, 𝐶〉 | |
| 2 | opex 5403 | . 2 ⊢ 〈〈𝐴, 𝐵〉, 𝐶〉 ∈ V | |
| 3 | 1, 2 | eqeltri 2835 | 1 ⊢ 〈𝐴, 𝐵, 𝐶〉 ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2119 Vcvv 3431 〈cop 4561 〈cotp 4563 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2711 ax-sep 5218 ax-pr 5362 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-ex 1787 df-sb 2074 df-clab 2718 df-cleq 2731 df-clel 2814 df-rab 3392 df-v 3433 df-un 3888 df-in 3890 df-ss 3900 df-sn 4556 df-pr 4558 df-op 4562 df-ot 4564 |
| This theorem is referenced by: euotd 5454 ralxp3f 8077 xpord3lem 8089 xpord3pred 8092 splval 14704 splcl 14705 idaval 18016 idaf 18021 eldmcoa 18023 coaval 18026 mamufval 22375 msrval 35766 msrf 35770 mapdhval 42216 mndtcco 50075 |
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