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| Mirrors > Home > MPE Home > Th. List > df-ot | Structured version Visualization version GIF version | ||
| Description: Define ordered triple of classes. Definition of ordered triple in [Stoll] p. 25. (Contributed by NM, 3-Apr-2015.) |
| Ref | Expression |
|---|---|
| df-ot | ⊢ 〈𝐴, 𝐵, 𝐶〉 = 〈〈𝐴, 𝐵〉, 𝐶〉 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cA | . . 3 class 𝐴 | |
| 2 | cB | . . 3 class 𝐵 | |
| 3 | cC | . . 3 class 𝐶 | |
| 4 | 1, 2, 3 | cotp 4576 | . 2 class 〈𝐴, 𝐵, 𝐶〉 |
| 5 | 1, 2 | cop 4574 | . . 3 class 〈𝐴, 𝐵〉 |
| 6 | 5, 3 | cop 4574 | . 2 class 〈〈𝐴, 𝐵〉, 𝐶〉 |
| 7 | 4, 6 | wceq 1542 | 1 wff 〈𝐴, 𝐵, 𝐶〉 = 〈〈𝐴, 𝐵〉, 𝐶〉 |
| Colors of variables: wff setvar class |
| This definition is referenced by: oteq1 4826 oteq2 4827 oteq3 4828 otex 5413 otth 5432 otthg 5433 otelxp 5668 otel3xp 5670 fnotovb 7412 ot1stg 7949 ot2ndg 7950 ot3rdg 7951 el2xptp 7981 el2xptp0 7982 frxp3 8094 ottpos 8179 wunot 10637 elhomai2 17992 homadmcd 18000 elmpst 35734 mpst123 35738 mpstrcl 35739 mppspstlem 35769 elmpps 35771 hdmap1val 42258 fnotaovb 47658 ovsng2 49346 setc1ohomfval 49980 setc1ocofval 49981 mndtcco 50072 |
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