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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 13167 | . . 3 ⊢ < Or ℝ* | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
| 3 | xrsupss 13336 | . 2 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
| 4 | 2, 3 | supcl 9419 | 1 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2143 ⊆ wss 3906 Or wor 5570 supcsup 9401 ℝ*cxr 11243 < clt 11244 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 ax-cnex 11157 ax-resscn 11158 ax-1cn 11159 ax-icn 11160 ax-addcl 11161 ax-addrcl 11162 ax-mulcl 11163 ax-mulrcl 11164 ax-mulcom 11165 ax-addass 11166 ax-mulass 11167 ax-distr 11168 ax-i2m1 11169 ax-1ne0 11170 ax-1rid 11171 ax-rnegex 11172 ax-rrecex 11173 ax-cnre 11174 ax-pre-lttri 11175 ax-pre-lttrn 11176 ax-pre-ltadd 11177 ax-pre-mulgt0 11178 ax-pre-sup 11179 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-br 5111 df-opab 5175 df-mpt 5194 df-id 5558 df-po 5571 df-so 5572 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-er 8695 df-en 8945 df-dom 8946 df-sdom 8947 df-sup 9403 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11444 df-neg 11445 |
| This theorem is referenced by: supxrun 13343 supxrmnf 13344 supxrbnd1 13348 supxrbnd2 13349 supxrub 13351 supxrleub 13353 supxrre 13354 supxrbnd 13355 supxrgtmnf 13356 supxrre1 13357 supxrre2 13358 supxrss 13359 ixxub 13394 limsupgord 15525 limsupcl 15526 limsupgf 15528 prdsdsf 24505 xpsdsval 24519 xrge0tsms 24973 elovolm 25615 ovolmge0 25617 ovolgelb 25620 ovollb2lem 25628 ovolunlem1a 25636 ovoliunlem1 25642 ovoliunlem2 25643 ovoliun 25645 ovolscalem1 25653 ovolicc1 25656 ovolicc2lem4 25660 voliunlem2 25691 voliunlem3 25692 ioombl1lem2 25699 uniioovol 25719 uniiccvol 25720 uniioombllem1 25721 uniioombllem3 25725 itg2cl 25872 itg2seq 25882 itg2monolem2 25891 itg2monolem3 25892 itg2mono 25893 mdeglt 26203 mdegxrcl 26205 radcnvcl 26561 nmoxr 31099 nmopxr 32199 nmfnxr 32212 xrofsup 33093 supxrnemnf 33094 xrge0tsmsd 33374 mblfinlem3 38291 mblfinlem4 38292 ismblfin 38293 itg2addnclem 38303 itg2gt0cn 38307 binomcxplemdvbinom 45046 binomcxplemcvg 45047 binomcxplemnotnn0 45049 supxrcld 45808 supxrgere 46032 supxrgelem 46036 supxrge 46037 suplesup 46038 suplesup2 46074 supxrcli 46131 liminfval2 46465 sge0cl 47078 sge0xaddlem1 47130 sge0xaddlem2 47131 sge0reuz 47144 |
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