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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 13092 | . . 3 ⊢ < Or ℝ* | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
| 3 | xrsupss 13261 | . 2 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
| 4 | 2, 3 | supcl 9371 | 1 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ⊆ wss 3889 Or wor 5538 supcsup 9353 ℝ*cxr 11178 < clt 11179 |
| 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 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-po 5539 df-so 5540 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-sup 9355 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 |
| This theorem is referenced by: supxrun 13268 supxrmnf 13269 supxrbnd1 13273 supxrbnd2 13274 supxrub 13276 supxrleub 13278 supxrre 13279 supxrbnd 13280 supxrgtmnf 13281 supxrre1 13282 supxrre2 13283 supxrss 13284 ixxub 13319 limsupgord 15434 limsupcl 15435 limsupgf 15437 prdsdsf 24332 xpsdsval 24346 xrge0tsms 24800 elovolm 25442 ovolmge0 25444 ovolgelb 25447 ovollb2lem 25455 ovolunlem1a 25463 ovoliunlem1 25469 ovoliunlem2 25470 ovoliun 25472 ovolscalem1 25480 ovolicc1 25483 ovolicc2lem4 25487 voliunlem2 25518 voliunlem3 25519 ioombl1lem2 25526 uniioovol 25546 uniiccvol 25547 uniioombllem1 25548 uniioombllem3 25552 itg2cl 25699 itg2seq 25709 itg2monolem2 25718 itg2monolem3 25719 itg2mono 25720 mdeglt 26030 mdegxrcl 26032 radcnvcl 26382 nmoxr 30837 nmopxr 31937 nmfnxr 31950 xrofsup 32840 supxrnemnf 32841 xrge0tsmsd 33134 mblfinlem3 37980 mblfinlem4 37981 ismblfin 37982 itg2addnclem 37992 itg2gt0cn 37996 binomcxplemdvbinom 44780 binomcxplemcvg 44781 binomcxplemnotnn0 44783 supxrcld 45537 supxrgere 45763 supxrgelem 45767 supxrge 45768 suplesup 45769 suplesup2 45805 supxrcli 45862 liminfval2 46196 sge0cl 46809 sge0xaddlem1 46861 sge0xaddlem2 46862 sge0reuz 46875 |
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