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| Mirrors > Home > MPE Home > Th. List > supxrcl | Structured version Visualization version GIF version | ||
| Description: The supremum of an arbitrary set of extended reals is an extended real. (Contributed by NM, 24-Oct-2005.) |
| Ref | Expression |
|---|---|
| supxrcl | ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xrltso 13050 | . . 3 ⊢ < Or ℝ* | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
| 3 | xrsupss 13218 | . 2 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
| 4 | 2, 3 | supcl 9352 | 1 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2113 ⊆ wss 3899 Or wor 5528 supcsup 9334 ℝ*cxr 11155 < clt 11156 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7677 ax-cnex 11072 ax-resscn 11073 ax-1cn 11074 ax-icn 11075 ax-addcl 11076 ax-addrcl 11077 ax-mulcl 11078 ax-mulrcl 11079 ax-mulcom 11080 ax-addass 11081 ax-mulass 11082 ax-distr 11083 ax-i2m1 11084 ax-1ne0 11085 ax-1rid 11086 ax-rnegex 11087 ax-rrecex 11088 ax-cnre 11089 ax-pre-lttri 11090 ax-pre-lttrn 11091 ax-pre-ltadd 11092 ax-pre-mulgt0 11093 ax-pre-sup 11094 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2883 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3059 df-rmo 3348 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4861 df-br 5096 df-opab 5158 df-mpt 5177 df-id 5516 df-po 5529 df-so 5530 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-riota 7312 df-ov 7358 df-oprab 7359 df-mpo 7360 df-er 8631 df-en 8879 df-dom 8880 df-sdom 8881 df-sup 9336 df-pnf 11158 df-mnf 11159 df-xr 11160 df-ltxr 11161 df-le 11162 df-sub 11356 df-neg 11357 |
| This theorem is referenced by: supxrun 13225 supxrmnf 13226 supxrbnd1 13230 supxrbnd2 13231 supxrub 13233 supxrleub 13235 supxrre 13236 supxrbnd 13237 supxrgtmnf 13238 supxrre1 13239 supxrre2 13240 supxrss 13241 ixxub 13276 limsupgord 15389 limsupcl 15390 limsupgf 15392 prdsdsf 24292 xpsdsval 24306 xrge0tsms 24760 elovolm 25413 ovolmge0 25415 ovolgelb 25418 ovollb2lem 25426 ovolunlem1a 25434 ovoliunlem1 25440 ovoliunlem2 25441 ovoliun 25443 ovolscalem1 25451 ovolicc1 25454 ovolicc2lem4 25458 voliunlem2 25489 voliunlem3 25490 ioombl1lem2 25497 uniioovol 25517 uniiccvol 25518 uniioombllem1 25519 uniioombllem3 25523 itg2cl 25670 itg2seq 25680 itg2monolem2 25689 itg2monolem3 25690 itg2mono 25691 mdeglt 26007 mdegxrcl 26009 radcnvcl 26363 nmoxr 30757 nmopxr 31857 nmfnxr 31870 xrofsup 32761 supxrnemnf 32762 xrge0tsmsd 33053 mblfinlem3 37709 mblfinlem4 37710 ismblfin 37711 itg2addnclem 37721 itg2gt0cn 37725 binomcxplemdvbinom 44460 binomcxplemcvg 44461 binomcxplemnotnn0 44463 supxrcld 45218 supxrgere 45446 supxrgelem 45450 supxrge 45451 suplesup 45452 suplesup2 45488 supxrcli 45546 liminfval2 45880 sge0cl 46493 sge0xaddlem1 46545 sge0xaddlem2 46546 sge0reuz 46559 |
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