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Related theorems Unicode version |
| Description: If a set of reals contains a lower bound, the lower bound is its infimum. |
| Ref | Expression |
|---|---|
| lbinfm |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lbcl 7255 |
. . . . 5
| |
| 2 | ssel 2615 |
. . . . . 6
| |
| 3 | 2 | adantr 425 |
. . . . 5
|
| 4 | 1, 3 | mpd 29 |
. . . 4
|
| 5 | lble 7256 |
. . . . . . . . . 10
| |
| 6 | 5 | 3expa 1067 |
. . . . . . . . 9
|
| 7 | ssel2 2616 |
. . . . . . . . . . . 12
| |
| 8 | 1, 7 | syldan 516 |
. . . . . . . . . . 11
|
| 9 | 8 | adantr 425 |
. . . . . . . . . 10
|
| 10 | ssel2 2616 |
. . . . . . . . . . 11
| |
| 11 | 10 | adantlr 429 |
. . . . . . . . . 10
|
| 12 | lenlt 6679 |
. . . . . . . . . 10
| |
| 13 | 9, 11, 12 | syl11anc 524 |
. . . . . . . . 9
|
| 14 | 6, 13 | mpbid 212 |
. . . . . . . 8
|
| 15 | reex 6465 |
. . . . . . . . . . . . 13
| |
| 16 | 15 | ssex 3455 |
. . . . . . . . . . . 12
|
| 17 | rabexg 3460 |
. . . . . . . . . . . 12
| |
| 18 | 16, 17 | syl 12 |
. . . . . . . . . . 11
|
| 19 | uniexg 3795 |
. . . . . . . . . . 11
| |
| 20 | visset 2295 |
. . . . . . . . . . . 12
| |
| 21 | brcnvg 4142 |
. . . . . . . . . . . 12
| |
| 22 | 20, 21 | mpan2 760 |
. . . . . . . . . . 11
|
| 23 | 18, 19, 22 | 3syl 24 |
. . . . . . . . . 10
|
| 24 | 23 | notbid 673 |
. . . . . . . . 9
|
| 25 | 24 | ad2antrr 440 |
. . . . . . . 8
|
| 26 | 14, 25 | mpbird 213 |
. . . . . . 7
|
| 27 | 26 | r19.21aiva 2176 |
. . . . . 6
|
| 28 | 1 | a1d 15 |
. . . . . . . . . 10
|
| 29 | 28 | ancrd 323 |
. . . . . . . . 9
|
| 30 | breq2 3342 |
. . . . . . . . . 10
| |
| 31 | 30 | rcla4ev 2381 |
. . . . . . . . 9
|
| 32 | 29, 31 | syl6 25 |
. . . . . . . 8
|
| 33 | 32 | a1d 15 |
. . . . . . 7
|
| 34 | 33 | r19.21aiv 2175 |
. . . . . 6
|
| 35 | breq1 3341 |
. . . . . . . . . 10
| |
| 36 | 35 | notbid 673 |
. . . . . . . . 9
|
| 37 | 36 | ralbidv 2123 |
. . . . . . . 8
|
| 38 | breq2 3342 |
. . . . . . . . . 10
| |
| 39 | 38 | imbi1d 675 |
. . . . . . . . 9
|
| 40 | 39 | ralbidv 2123 |
. . . . . . . 8
|
| 41 | 37, 40 | anbi12d 690 |
. . . . . . 7
|
| 42 | 41 | rcla4ev 2381 |
. . . . . 6
|
| 43 | 4, 27, 34, 42 | syl12anc 1098 |
. . . . 5
|
| 44 | ltso 6681 |
. . . . . . 7
| |
| 45 | cnvso 4428 |
. . . . . . 7
| |
| 46 | 44, 45 | mpbi 206 |
. . . . . 6
|
| 47 | 46 | supeu 5668 |
. . . . 5
|
| 48 | 43, 47 | syl 12 |
. . . 4
|
| 49 | 41 | reuuni2 3811 |
. . . 4
|
| 50 | 4, 48, 49 | syl11anc 524 |
. . 3
|
| 51 | 50, 27, 34 | mpbi2and 801 |
. 2
|
| 52 | df-sup 5664 |
. 2
| |
| 53 | 51, 52 | syl5eq 1940 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: lbinfmcl 7258 lbinfmle 7259 uzinfmi 7631 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-13 1311 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-rep 3428 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 ax-un 3790 ax-inf2 5731 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-3or 859 df-3an 860 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-nel 2020 df-ral 2109 df-rex 2110 df-reu 2111 df-rab 2112 df-v 2294 df-sbc 2454 df-csb 2541 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-pss 2607 df-nul 2876 df-if 2983 df-pw 3035 df-sn 3049 df-pr 3050 df-tp 3052 df-op 3053 df-uni 3178 df-int 3215 df-iun 3257 df-br 3339 df-opab 3396 df-tr 3412 df-eprel 3583 df-id 3586 df-po 3591 df-so 3604 df-fr 3625 df-we 3644 df-ord 3660 df-on 3661 df-lim 3662 df-suc 3663 df-om 3950 df-xp 4000 df-rel 4001 df-cnv 4002 df-co 4003 df-dm 4004 df-rn 4005 df-res 4006 df-ima 4007 df-fun 4008 df-fn 4009 df-f 4010 df-f1 4011 df-fo 4012 df-f1o 4013 df-fv 4014 df-opr 4886 df-oprab 4887 df-1st 5020 df-2nd 5021 df-rdg 5140 df-1o 5177 df-oadd 5179 df-omul 5180 df-er 5318 df-ec 5320 df-qs 5323 df-en 5427 df-dom 5428 df-sdom 5429 df-sup 5664 df-ni 6152 df-pli 6153 df-mi 6154 df-lti 6155 df-plpq 6187 df-mpq 6188 df-enq 6189 df-nq 6190 df-plq 6191 df-mq 6192 df-rq 6193 df-ltq 6194 df-1q 6195 df-np 6238 df-1p 6239 df-plp 6240 df-ltp 6242 df-enr 6318 df-nr 6319 df-ltr 6322 df-0r 6323 df-c 6392 df-r 6396 df-lt 6399 df-pnf 6654 df-mnf 6655 df-xr 6656 df-ltxr 6657 df-le 6658 |