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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 13061 | . . 3 ⊢ < Or ℝ* | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
| 3 | xrsupss 13229 | . 2 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
| 4 | 2, 3 | supcl 9367 | 1 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2109 ⊆ wss 3905 Or wor 5530 supcsup 9349 ℝ*cxr 11167 < clt 11168 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 ax-pre-sup 11106 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3345 df-reu 3346 df-rab 3397 df-v 3440 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-br 5096 df-opab 5158 df-mpt 5177 df-id 5518 df-po 5531 df-so 5532 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7310 df-ov 7356 df-oprab 7357 df-mpo 7358 df-er 8632 df-en 8880 df-dom 8881 df-sdom 8882 df-sup 9351 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11367 df-neg 11368 |
| This theorem is referenced by: supxrun 13236 supxrmnf 13237 supxrbnd1 13241 supxrbnd2 13242 supxrub 13244 supxrleub 13246 supxrre 13247 supxrbnd 13248 supxrgtmnf 13249 supxrre1 13250 supxrre2 13251 supxrss 13252 ixxub 13287 limsupgord 15397 limsupcl 15398 limsupgf 15400 prdsdsf 24271 xpsdsval 24285 xrge0tsms 24739 elovolm 25392 ovolmge0 25394 ovolgelb 25397 ovollb2lem 25405 ovolunlem1a 25413 ovoliunlem1 25419 ovoliunlem2 25420 ovoliun 25422 ovolscalem1 25430 ovolicc1 25433 ovolicc2lem4 25437 voliunlem2 25468 voliunlem3 25469 ioombl1lem2 25476 uniioovol 25496 uniiccvol 25497 uniioombllem1 25498 uniioombllem3 25502 itg2cl 25649 itg2seq 25659 itg2monolem2 25668 itg2monolem3 25669 itg2mono 25670 mdeglt 25986 mdegxrcl 25988 radcnvcl 26342 nmoxr 30728 nmopxr 31828 nmfnxr 31841 xrofsup 32723 supxrnemnf 32724 xrge0tsmsd 33028 mblfinlem3 37641 mblfinlem4 37642 ismblfin 37643 itg2addnclem 37653 itg2gt0cn 37657 binomcxplemdvbinom 44329 binomcxplemcvg 44330 binomcxplemnotnn0 44332 supxrcld 45088 supxrgere 45316 supxrgelem 45320 supxrge 45321 suplesup 45322 suplesup2 45359 supxrcli 45417 liminfval2 45753 sge0cl 46366 sge0xaddlem1 46418 sge0xaddlem2 46419 sge0reuz 46432 |
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