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Mirrors > Home > MPE Home > Th. List > lublem | Structured version Visualization version GIF version |
Description: Lemma for the least upper bound properties in a complete lattice. (Contributed by NM, 19-Oct-2011.) |
Ref | Expression |
---|---|
lublem.b | β’ π΅ = (BaseβπΎ) |
lublem.l | β’ β€ = (leβπΎ) |
lublem.u | β’ π = (lubβπΎ) |
Ref | Expression |
---|---|
lublem | β’ ((πΎ β CLat β§ π β π΅) β (βπ¦ β π π¦ β€ (πβπ) β§ βπ§ β π΅ (βπ¦ β π π¦ β€ π§ β (πβπ) β€ π§))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lublem.b | . 2 β’ π΅ = (BaseβπΎ) | |
2 | lublem.l | . 2 β’ β€ = (leβπΎ) | |
3 | lublem.u | . 2 β’ π = (lubβπΎ) | |
4 | simpl 483 | . 2 β’ ((πΎ β CLat β§ π β π΅) β πΎ β CLat) | |
5 | 1, 3 | clatlubcl2 18438 | . 2 β’ ((πΎ β CLat β§ π β π΅) β π β dom π) |
6 | 1, 2, 3, 4, 5 | lubprop 18292 | 1 β’ ((πΎ β CLat β§ π β π΅) β (βπ¦ β π π¦ β€ (πβπ) β§ βπ§ β π΅ (βπ¦ β π π¦ β€ π§ β (πβπ) β€ π§))) |
Colors of variables: wff setvar class |
Syntax hints: β wi 4 β§ wa 396 = wceq 1541 β wcel 2106 βwral 3060 β wss 3943 class class class wbr 5140 βcfv 6531 Basecbs 17125 lecple 17185 lubclub 18243 CLatccla 18432 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-rep 5277 ax-sep 5291 ax-nul 5298 ax-pow 5355 ax-pr 5419 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-ral 3061 df-rex 3070 df-rmo 3375 df-reu 3376 df-rab 3432 df-v 3474 df-sbc 3773 df-csb 3889 df-dif 3946 df-un 3948 df-in 3950 df-ss 3960 df-nul 4318 df-if 4522 df-pw 4597 df-sn 4622 df-pr 4624 df-op 4628 df-uni 4901 df-iun 4991 df-br 5141 df-opab 5203 df-mpt 5224 df-id 5566 df-xp 5674 df-rel 5675 df-cnv 5676 df-co 5677 df-dm 5678 df-rn 5679 df-res 5680 df-ima 5681 df-iota 6483 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7348 df-lub 18280 df-clat 18433 |
This theorem is referenced by: lubub 18445 lubl 18446 |
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