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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 11850 | . . 3 ⊢ < Or ℝ* | |
2 | 1 | a1i 11 | . 2 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
3 | xrsupss 12011 | . 2 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
4 | 2, 3 | supcl 8247 | 1 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 ⊆ wss 3540 Or wor 4958 supcsup 8229 ℝ*cxr 9952 < clt 9953 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 ax-pre-sup 9893 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-po 4959 df-so 4960 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-sup 8231 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 |
This theorem is referenced by: supxrun 12018 supxrmnf 12019 supxrbnd1 12023 supxrbnd2 12024 supxrub 12026 supxrleub 12028 supxrre 12029 supxrbnd 12030 supxrgtmnf 12031 supxrre1 12032 supxrre2 12033 supxrss 12034 ixxub 12067 limsupgord 14051 limsupcl 14052 limsupgf 14054 prdsdsf 21982 xpsdsval 21996 xrge0tsms 22445 elovolm 23050 ovolmge0 23052 ovolgelb 23055 ovollb2lem 23063 ovolunlem1a 23071 ovoliunlem1 23077 ovoliunlem2 23078 ovoliun 23080 ovolscalem1 23088 ovolicc1 23091 ovolicc2lem4 23095 voliunlem2 23126 voliunlem3 23127 ioombl1lem2 23134 uniioovol 23153 uniiccvol 23154 uniioombllem1 23155 uniioombllem3 23159 itg2cl 23305 itg2seq 23315 itg2monolem2 23324 itg2monolem3 23325 itg2mono 23326 mdeglt 23629 mdegxrcl 23631 radcnvcl 23975 nmoxr 27005 nmopxr 28109 nmfnxr 28122 xrofsup 28923 supxrnemnf 28924 xrge0tsmsd 29116 mblfinlem3 32618 mblfinlem4 32619 ismblfin 32620 itg2addnclem 32631 itg2gt0cn 32635 binomcxplemdvbinom 37574 binomcxplemcvg 37575 binomcxplemnotnn0 37577 supxrcld 38321 supxrgere 38490 supxrgelem 38494 supxrge 38495 suplesup 38496 suplesup2 38533 sge0cl 39274 sge0xaddlem1 39326 sge0xaddlem2 39327 sge0reuz 39340 |
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