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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 13067 | . . 3 ⊢ < Or ℝ* | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
| 3 | xrsupss 13236 | . 2 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
| 4 | 2, 3 | supcl 9373 | 1 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ⊆ wss 3903 Or wor 5539 supcsup 9355 ℝ*cxr 11177 < clt 11178 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-pre-sup 11116 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-po 5540 df-so 5541 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-riota 7325 df-ov 7371 df-oprab 7372 df-mpo 7373 df-er 8645 df-en 8896 df-dom 8897 df-sdom 8898 df-sup 9357 df-pnf 11180 df-mnf 11181 df-xr 11182 df-ltxr 11183 df-le 11184 df-sub 11378 df-neg 11379 |
| This theorem is referenced by: supxrun 13243 supxrmnf 13244 supxrbnd1 13248 supxrbnd2 13249 supxrub 13251 supxrleub 13253 supxrre 13254 supxrbnd 13255 supxrgtmnf 13256 supxrre1 13257 supxrre2 13258 supxrss 13259 ixxub 13294 limsupgord 15407 limsupcl 15408 limsupgf 15410 prdsdsf 24323 xpsdsval 24337 xrge0tsms 24791 elovolm 25444 ovolmge0 25446 ovolgelb 25449 ovollb2lem 25457 ovolunlem1a 25465 ovoliunlem1 25471 ovoliunlem2 25472 ovoliun 25474 ovolscalem1 25482 ovolicc1 25485 ovolicc2lem4 25489 voliunlem2 25520 voliunlem3 25521 ioombl1lem2 25528 uniioovol 25548 uniiccvol 25549 uniioombllem1 25550 uniioombllem3 25554 itg2cl 25701 itg2seq 25711 itg2monolem2 25720 itg2monolem3 25721 itg2mono 25722 mdeglt 26038 mdegxrcl 26040 radcnvcl 26394 nmoxr 30853 nmopxr 31953 nmfnxr 31966 xrofsup 32857 supxrnemnf 32858 xrge0tsmsd 33166 mblfinlem3 37907 mblfinlem4 37908 ismblfin 37909 itg2addnclem 37919 itg2gt0cn 37923 binomcxplemdvbinom 44706 binomcxplemcvg 44707 binomcxplemnotnn0 44709 supxrcld 45463 supxrgere 45689 supxrgelem 45693 supxrge 45694 suplesup 45695 suplesup2 45731 supxrcli 45789 liminfval2 46123 sge0cl 46736 sge0xaddlem1 46788 sge0xaddlem2 46789 sge0reuz 46802 |
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