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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 3931 | . 2 ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → 𝐵 ∈ ℝ*) | |
| 2 | supxrcl 13315 | . . 3 ⊢ (𝐴 ⊆ ℝ* → sup(𝐴, ℝ*, < ) ∈ ℝ*) | |
| 3 | 2 | adantr 484 | . 2 ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → sup(𝐴, ℝ*, < ) ∈ ℝ*) |
| 4 | xrltso 13140 | . . . . 5 ⊢ < Or ℝ* | |
| 5 | 4 | a1i 11 | . . . 4 ⊢ (𝐴 ⊆ ℝ* → < Or ℝ*) |
| 6 | xrsupss 13309 | . . . 4 ⊢ (𝐴 ⊆ ℝ* → ∃𝑥 ∈ ℝ* (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ* (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) | |
| 7 | 5, 6 | supub 9402 | . . 3 ⊢ (𝐴 ⊆ ℝ* → (𝐵 ∈ 𝐴 → ¬ sup(𝐴, ℝ*, < ) < 𝐵)) |
| 8 | 7 | imp 410 | . 2 ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → ¬ sup(𝐴, ℝ*, < ) < 𝐵) |
| 9 | 1, 3, 8 | xrnltled 11248 | 1 ⊢ ((𝐴 ⊆ ℝ* ∧ 𝐵 ∈ 𝐴) → 𝐵 ≤ sup(𝐴, ℝ*, < )) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 399 ∈ wcel 2141 ⊆ wss 3904 class class class wbr 5099 Or wor 5552 supcsup 9383 ℝ*cxr 11212 < clt 11213 ≤ cle 11214 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 ax-cnex 11126 ax-resscn 11127 ax-1cn 11128 ax-icn 11129 ax-addcl 11130 ax-addrcl 11131 ax-mulcl 11132 ax-mulrcl 11133 ax-mulcom 11134 ax-addass 11135 ax-mulass 11136 ax-distr 11137 ax-i2m1 11138 ax-1ne0 11139 ax-1rid 11140 ax-rnegex 11141 ax-rrecex 11142 ax-cnre 11143 ax-pre-lttri 11144 ax-pre-lttrn 11145 ax-pre-ltadd 11146 ax-pre-mulgt0 11147 ax-pre-sup 11148 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5540 df-po 5553 df-so 5554 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-fv 6525 df-riota 7349 df-ov 7395 df-oprab 7396 df-mpo 7397 df-er 8673 df-en 8924 df-dom 8925 df-sdom 8926 df-sup 9385 df-pnf 11215 df-mnf 11216 df-xr 11217 df-ltxr 11218 df-le 11219 df-sub 11413 df-neg 11414 |
| This theorem is referenced by: supxrre 13327 supxrss 13332 ixxub 13367 prdsdsf 24407 prdsxmetlem 24408 xpsdsval 24421 prdsbl 24531 xrge0tsms 24875 bndth 25000 ovolmge0 25519 ovollb2lem 25530 ovolunlem1a 25538 ovoliunlem1 25544 ovoliun 25547 ovolicc2lem4 25562 ioombl1lem2 25601 ioombl1lem4 25603 uniioombllem2 25625 uniioombllem3 25627 uniioombllem6 25630 vitalilem4 25653 itg2ub 25775 itg2seq 25784 itg2monolem1 25792 itg2monolem2 25793 itg2monolem3 25794 aannenlem2 26370 radcnvcl 26457 radcnvle 26460 nmooge0 30916 nmoolb 30920 nmlno0lem 30942 nmoplb 32056 nmfnlb 32073 nmlnop0iALT 32144 xrofsup 32919 xrge0tsmsd 33214 itg2addnc 38137 rrnequiv 38298 supxrubd 45655 supxrgere 45873 supxrgelem 45877 suplesup2 45915 ressiocsup 46094 ressioosup 46095 liminfval2 46306 etransclem48 46820 fsumlesge0 46915 sge0cl 46919 sge0supre 46927 sge0xaddlem1 46971 sge0xaddlem2 46972 |
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