Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > poslubmo | Structured version Visualization version Unicode version |
Description: Least upper bounds in a poset are unique if they exist. (Contributed by Stefan O'Rear, 31-Jan-2015.) (Revised by NM, 16-Jun-2017.) |
Ref | Expression |
---|---|
poslubmo.l | |
poslubmo.b |
Ref | Expression |
---|---|
poslubmo |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simplrr 801 | . . . . . 6 | |
2 | simprlr 803 | . . . . . 6 | |
3 | simprrl 804 | . . . . . 6 | |
4 | breq2 4657 | . . . . . . . . 9 | |
5 | 4 | ralbidv 2986 | . . . . . . . 8 |
6 | breq2 4657 | . . . . . . . 8 | |
7 | 5, 6 | imbi12d 334 | . . . . . . 7 |
8 | 7 | rspcv 3305 | . . . . . 6 |
9 | 1, 2, 3, 8 | syl3c 66 | . . . . 5 |
10 | simplrl 800 | . . . . . 6 | |
11 | simprrr 805 | . . . . . 6 | |
12 | simprll 802 | . . . . . 6 | |
13 | breq2 4657 | . . . . . . . . 9 | |
14 | 13 | ralbidv 2986 | . . . . . . . 8 |
15 | breq2 4657 | . . . . . . . 8 | |
16 | 14, 15 | imbi12d 334 | . . . . . . 7 |
17 | 16 | rspcv 3305 | . . . . . 6 |
18 | 10, 11, 12, 17 | syl3c 66 | . . . . 5 |
19 | poslubmo.b | . . . . . . . 8 | |
20 | poslubmo.l | . . . . . . . 8 | |
21 | 19, 20 | posasymb 16952 | . . . . . . 7 |
22 | 21 | 3expb 1266 | . . . . . 6 |
23 | 22 | ad4ant13 1292 | . . . . 5 |
24 | 9, 18, 23 | mpbi2and 956 | . . . 4 |
25 | 24 | ex 450 | . . 3 |
26 | 25 | ralrimivva 2971 | . 2 |
27 | breq2 4657 | . . . . 5 | |
28 | 27 | ralbidv 2986 | . . . 4 |
29 | breq1 4656 | . . . . . 6 | |
30 | 29 | imbi2d 330 | . . . . 5 |
31 | 30 | ralbidv 2986 | . . . 4 |
32 | 28, 31 | anbi12d 747 | . . 3 |
33 | 32 | rmo4 3399 | . 2 |
34 | 26, 33 | sylibr 224 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 wceq 1483 wcel 1990 wral 2912 wrmo 2915 wss 3574 class class class wbr 4653 cfv 5888 cbs 15857 cple 15948 cpo 16940 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-nul 4789 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rmo 2920 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-iota 5851 df-fv 5896 df-preset 16928 df-poset 16946 |
This theorem is referenced by: poslubd 17148 |
Copyright terms: Public domain | W3C validator |