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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 13083 | . . 3 ⊢ < Or ℝ* | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
| 3 | xrsupss 13252 | . 2 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
| 4 | 2, 3 | supcl 9364 | 1 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ⊆ wss 3890 Or wor 5531 supcsup 9346 ℝ*cxr 11169 < clt 11170 |
| 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 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 ax-pre-sup 11107 |
| 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 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5519 df-po 5532 df-so 5533 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 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 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 df-sup 9348 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 |
| This theorem is referenced by: supxrun 13259 supxrmnf 13260 supxrbnd1 13264 supxrbnd2 13265 supxrub 13267 supxrleub 13269 supxrre 13270 supxrbnd 13271 supxrgtmnf 13272 supxrre1 13273 supxrre2 13274 supxrss 13275 ixxub 13310 limsupgord 15425 limsupcl 15426 limsupgf 15428 prdsdsf 24342 xpsdsval 24356 xrge0tsms 24810 elovolm 25452 ovolmge0 25454 ovolgelb 25457 ovollb2lem 25465 ovolunlem1a 25473 ovoliunlem1 25479 ovoliunlem2 25480 ovoliun 25482 ovolscalem1 25490 ovolicc1 25493 ovolicc2lem4 25497 voliunlem2 25528 voliunlem3 25529 ioombl1lem2 25536 uniioovol 25556 uniiccvol 25557 uniioombllem1 25558 uniioombllem3 25562 itg2cl 25709 itg2seq 25719 itg2monolem2 25728 itg2monolem3 25729 itg2mono 25730 mdeglt 26040 mdegxrcl 26042 radcnvcl 26395 nmoxr 30852 nmopxr 31952 nmfnxr 31965 xrofsup 32855 supxrnemnf 32856 xrge0tsmsd 33149 mblfinlem3 37994 mblfinlem4 37995 ismblfin 37996 itg2addnclem 38006 itg2gt0cn 38010 binomcxplemdvbinom 44798 binomcxplemcvg 44799 binomcxplemnotnn0 44801 supxrcld 45555 supxrgere 45781 supxrgelem 45785 supxrge 45786 suplesup 45787 suplesup2 45823 supxrcli 45880 liminfval2 46214 sge0cl 46827 sge0xaddlem1 46879 sge0xaddlem2 46880 sge0reuz 46893 |
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