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Mirrors > Home > ILE Home > Th. List > supubti | Unicode version |
Description: A supremum is an upper
bound. See also supclti 6885 and suplubti 6887.
This proof demonstrates how to expand an iota-based definition (df-iota 5088) using riotacl2 5743. (Contributed by Jim Kingdon, 24-Nov-2021.) |
Ref | Expression |
---|---|
supmoti.ti | |
supclti.2 |
Ref | Expression |
---|---|
supubti |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 108 | . . . . 5 | |
2 | 1 | a1i 9 | . . . 4 |
3 | 2 | ss2rabi 3179 | . . 3 |
4 | supmoti.ti | . . . . 5 | |
5 | supclti.2 | . . . . 5 | |
6 | 4, 5 | supval2ti 6882 | . . . 4 |
7 | 4, 5 | supeuti 6881 | . . . . 5 |
8 | riotacl2 5743 | . . . . 5 | |
9 | 7, 8 | syl 14 | . . . 4 |
10 | 6, 9 | eqeltrd 2216 | . . 3 |
11 | 3, 10 | sseldi 3095 | . 2 |
12 | breq2 3933 | . . . . . . 7 | |
13 | 12 | notbid 656 | . . . . . 6 |
14 | 13 | cbvralv 2654 | . . . . 5 |
15 | breq1 3932 | . . . . . . 7 | |
16 | 15 | notbid 656 | . . . . . 6 |
17 | 16 | ralbidv 2437 | . . . . 5 |
18 | 14, 17 | syl5bb 191 | . . . 4 |
19 | 18 | elrab 2840 | . . 3 |
20 | 19 | simprbi 273 | . 2 |
21 | breq2 3933 | . . . 4 | |
22 | 21 | notbid 656 | . . 3 |
23 | 22 | rspccv 2786 | . 2 |
24 | 11, 20, 23 | 3syl 17 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wceq 1331 wcel 1480 wral 2416 wrex 2417 wreu 2418 crab 2420 class class class wbr 3929 crio 5729 csup 6869 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-reu 2423 df-rmo 2424 df-rab 2425 df-v 2688 df-sbc 2910 df-un 3075 df-in 3077 df-ss 3084 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-iota 5088 df-riota 5730 df-sup 6871 |
This theorem is referenced by: suplub2ti 6888 supisoti 6897 inflbti 6911 suprubex 8709 zsupcl 11640 dvdslegcd 11653 |
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