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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 13090 | . . 3 ⊢ < Or ℝ* | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
| 3 | xrsupss 13259 | . 2 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
| 4 | 2, 3 | supcl 9368 | 1 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2119 ⊆ wss 3890 Or wor 5532 supcsup 9350 ℝ*cxr 11176 < clt 11177 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2712 ax-sep 5225 ax-nul 5235 ax-pow 5301 ax-pr 5369 ax-un 7685 ax-cnex 11092 ax-resscn 11093 ax-1cn 11094 ax-icn 11095 ax-addcl 11096 ax-addrcl 11097 ax-mulcl 11098 ax-mulrcl 11099 ax-mulcom 11100 ax-addass 11101 ax-mulass 11102 ax-distr 11103 ax-i2m1 11104 ax-1ne0 11105 ax-1rid 11106 ax-rnegex 11107 ax-rrecex 11108 ax-cnre 11109 ax-pre-lttri 11110 ax-pre-lttrn 11111 ax-pre-ltadd 11112 ax-pre-mulgt0 11113 ax-pre-sup 11114 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ne 2936 df-nel 3040 df-ral 3055 df-rex 3065 df-rmo 3345 df-reu 3346 df-rab 3393 df-v 3434 df-sbc 3731 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-br 5080 df-opab 5142 df-mpt 5161 df-id 5520 df-po 5533 df-so 5534 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7320 df-ov 7366 df-oprab 7367 df-mpo 7368 df-er 8640 df-en 8891 df-dom 8892 df-sdom 8893 df-sup 9352 df-pnf 11179 df-mnf 11180 df-xr 11181 df-ltxr 11182 df-le 11183 df-sub 11377 df-neg 11378 |
| This theorem is referenced by: supxrun 13266 supxrmnf 13267 supxrbnd1 13271 supxrbnd2 13272 supxrub 13274 supxrleub 13276 supxrre 13277 supxrbnd 13278 supxrgtmnf 13279 supxrre1 13280 supxrre2 13281 supxrss 13282 ixxub 13317 limsupgord 15432 limsupcl 15433 limsupgf 15435 prdsdsf 24357 xpsdsval 24371 xrge0tsms 24825 elovolm 25467 ovolmge0 25469 ovolgelb 25472 ovollb2lem 25480 ovolunlem1a 25488 ovoliunlem1 25494 ovoliunlem2 25495 ovoliun 25497 ovolscalem1 25505 ovolicc1 25508 ovolicc2lem4 25512 voliunlem2 25543 voliunlem3 25544 ioombl1lem2 25551 uniioovol 25571 uniiccvol 25572 uniioombllem1 25573 uniioombllem3 25577 itg2cl 25724 itg2seq 25734 itg2monolem2 25743 itg2monolem3 25744 itg2mono 25745 mdeglt 26055 mdegxrcl 26057 radcnvcl 26407 nmoxr 30862 nmopxr 31962 nmfnxr 31975 xrofsup 32866 supxrnemnf 32867 xrge0tsmsd 33161 mblfinlem3 38033 mblfinlem4 38034 ismblfin 38035 itg2addnclem 38045 itg2gt0cn 38049 binomcxplemdvbinom 44804 binomcxplemcvg 44805 binomcxplemnotnn0 44807 supxrcld 45561 supxrgere 45785 supxrgelem 45789 supxrge 45790 suplesup 45791 suplesup2 45827 supxrcli 45884 liminfval2 46218 sge0cl 46831 sge0xaddlem1 46883 sge0xaddlem2 46884 sge0reuz 46897 |
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