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Mathbox for Zhi Wang |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > opnneil | Structured version Visualization version GIF version |
Description: A variant of opnneilv 48005. (Contributed by Zhi Wang, 31-Aug-2024.) |
Ref | Expression |
---|---|
opnneir.1 | β’ (π β π½ β Top) |
opnneilv.2 | β’ ((π β§ π¦ β π₯) β (π β π)) |
opnneil.3 | β’ ((π β§ π₯ = π¦) β (π β π)) |
Ref | Expression |
---|---|
opnneil | β’ (π β (βπ₯ β ((neiβπ½)βπ)π β βπ₯ β π½ (π β π₯ β§ π))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opnneir.1 | . . 3 β’ (π β π½ β Top) | |
2 | opnneilv.2 | . . 3 β’ ((π β§ π¦ β π₯) β (π β π)) | |
3 | 1, 2 | opnneilv 48005 | . 2 β’ (π β (βπ₯ β ((neiβπ½)βπ)π β βπ¦ β π½ (π β π¦ β§ π))) |
4 | opnneil.3 | . . 3 β’ ((π β§ π₯ = π¦) β (π β π)) | |
5 | 4 | opnneilem 48002 | . 2 β’ (π β (βπ₯ β π½ (π β π₯ β§ π) β βπ¦ β π½ (π β π¦ β§ π))) |
6 | 3, 5 | sylibrd 258 | 1 β’ (π β (βπ₯ β ((neiβπ½)βπ)π β βπ₯ β π½ (π β π₯ β§ π))) |
Colors of variables: wff setvar class |
Syntax hints: β wi 4 β wb 205 β§ wa 394 β wcel 2098 βwrex 3067 β wss 3949 βcfv 6553 Topctop 22815 neicnei 23021 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2699 ax-rep 5289 ax-sep 5303 ax-nul 5310 ax-pow 5369 ax-pr 5433 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2529 df-eu 2558 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-ral 3059 df-rex 3068 df-reu 3375 df-rab 3431 df-v 3475 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-nul 4327 df-if 4533 df-pw 4608 df-sn 4633 df-pr 4635 df-op 4639 df-uni 4913 df-iun 5002 df-br 5153 df-opab 5215 df-mpt 5236 df-id 5580 df-xp 5688 df-rel 5689 df-cnv 5690 df-co 5691 df-dm 5692 df-rn 5693 df-res 5694 df-ima 5695 df-iota 6505 df-fun 6555 df-fn 6556 df-f 6557 df-f1 6558 df-fo 6559 df-f1o 6560 df-fv 6561 df-top 22816 df-nei 23022 |
This theorem is referenced by: opnneieqv 48007 |
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