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Mirrors > Home > MPE Home > Th. List > supxrub | Structured version Visualization version GIF version |
Description: A member of a set of extended reals is less than or equal to the set's supremum. (Contributed by NM, 7-Feb-2006.) |
Ref | Expression |
---|---|
supxrub | ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → 𝐵 ≤ sup(𝐴, ℝ*, < )) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssel2 3912 | . 2 ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → 𝐵 ∈ ℝ*) | |
2 | supxrcl 12978 | . . 3 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) | |
3 | 2 | adantr 480 | . 2 ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
4 | xrltso 12804 | . . . . 5 ⊢ < Or ℝ* | |
5 | 4 | a1i 11 | . . . 4 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
6 | xrsupss 12972 | . . . 4 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
7 | 5, 6 | supub 9148 | . . 3 ⊢ (𝐴 ⊆ ℝ* → (𝐵 ∈ 𝐴 → ¬ sup(𝐴, ℝ*, < ) < 𝐵)) |
8 | 7 | imp 406 | . 2 ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → ¬ sup(𝐴, ℝ*, < ) < 𝐵) |
9 | 1, 3, 8 | xrnltled 10974 | 1 ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → 𝐵 ≤ sup(𝐴, ℝ*, < )) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∈ wcel 2108 ⊆ wss 3883 class class class wbr 5070 Or wor 5493 supcsup 9129 ℝ*cxr 10939 < clt 10940 ≤ cle 10941 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-pre-sup 10880 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-po 5494 df-so 5495 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-sup 9131 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 |
This theorem is referenced by: supxrre 12990 supxrss 12995 ixxub 13029 prdsdsf 23428 prdsxmetlem 23429 xpsdsval 23442 prdsbl 23553 xrge0tsms 23903 bndth 24027 ovolmge0 24546 ovollb2lem 24557 ovolunlem1a 24565 ovoliunlem1 24571 ovoliun 24574 ovolicc2lem4 24589 ioombl1lem2 24628 ioombl1lem4 24630 uniioombllem2 24652 uniioombllem3 24654 uniioombllem6 24657 vitalilem4 24680 itg2ub 24803 itg2seq 24812 itg2monolem1 24820 itg2monolem2 24821 itg2monolem3 24822 aannenlem2 25394 radcnvcl 25481 radcnvle 25484 nmooge0 29030 nmoolb 29034 nmlno0lem 29056 nmoplb 30170 nmfnlb 30187 nmlnop0iALT 30258 xrofsup 30992 xrge0tsmsd 31219 itg2addnc 35758 rrnequiv 35920 supxrubd 42552 supxrgere 42762 supxrgelem 42766 suplesup2 42805 ressiocsup 42982 ressioosup 42983 liminfval2 43199 etransclem48 43713 fsumlesge0 43805 sge0cl 43809 sge0supre 43817 sge0xaddlem1 43861 sge0xaddlem2 43862 |
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