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Mirrors > Home > MPE Home > Th. List > leordtval | Structured version Visualization version GIF version |
Description: The topology of the extended reals. (Contributed by Mario Carneiro, 3-Sep-2015.) |
Ref | Expression |
---|---|
leordtval.1 | ⊢ 𝐴 = ran (𝑥 ∈ ℝ* ↦ (𝑥(,]+∞)) |
leordtval.2 | ⊢ 𝐵 = ran (𝑥 ∈ ℝ* ↦ (-∞[,)𝑥)) |
leordtval.3 | ⊢ 𝐶 = ran (,) |
Ref | Expression |
---|---|
leordtval | ⊢ (ordTop‘ ≤ ) = (topGen‘((𝐴 ∪ 𝐵) ∪ 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leordtval.1 | . . 3 ⊢ 𝐴 = ran (𝑥 ∈ ℝ* ↦ (𝑥(,]+∞)) | |
2 | leordtval.2 | . . 3 ⊢ 𝐵 = ran (𝑥 ∈ ℝ* ↦ (-∞[,)𝑥)) | |
3 | 1, 2 | leordtval2 23241 | . 2 ⊢ (ordTop‘ ≤ ) = (topGen‘(fi‘(𝐴 ∪ 𝐵))) |
4 | letsr 18663 | . . . 4 ⊢ ≤ ∈ TosetRel | |
5 | ledm 18660 | . . . . 5 ⊢ ℝ* = dom ≤ | |
6 | 1 | leordtvallem1 23239 | . . . . 5 ⊢ 𝐴 = ran (𝑥 ∈ ℝ* ↦ {𝑦 ∈ ℝ* ∣ ¬ 𝑦 ≤ 𝑥}) |
7 | 1, 2 | leordtvallem2 23240 | . . . . 5 ⊢ 𝐵 = ran (𝑥 ∈ ℝ* ↦ {𝑦 ∈ ℝ* ∣ ¬ 𝑥 ≤ 𝑦}) |
8 | leordtval.3 | . . . . . 6 ⊢ 𝐶 = ran (,) | |
9 | df-ioo 13411 | . . . . . . . 8 ⊢ (,) = (𝑎 ∈ ℝ*, 𝑏 ∈ ℝ* ↦ {𝑦 ∈ ℝ* ∣ (𝑎 < 𝑦 ∧ 𝑦 < 𝑏)}) | |
10 | xrltnle 11357 | . . . . . . . . . . . 12 ⊢ ((𝑎 ∈ ℝ* ∧ 𝑦 ∈ ℝ*) → (𝑎 < 𝑦 ↔ ¬ 𝑦 ≤ 𝑎)) | |
11 | 10 | adantlr 714 | . . . . . . . . . . 11 ⊢ (((𝑎 ∈ ℝ* ∧ 𝑏 ∈ ℝ*) ∧ 𝑦 ∈ ℝ*) → (𝑎 < 𝑦 ↔ ¬ 𝑦 ≤ 𝑎)) |
12 | xrltnle 11357 | . . . . . . . . . . . . 13 ⊢ ((𝑦 ∈ ℝ* ∧ 𝑏 ∈ ℝ*) → (𝑦 < 𝑏 ↔ ¬ 𝑏 ≤ 𝑦)) | |
13 | 12 | ancoms 458 | . . . . . . . . . . . 12 ⊢ ((𝑏 ∈ ℝ* ∧ 𝑦 ∈ ℝ*) → (𝑦 < 𝑏 ↔ ¬ 𝑏 ≤ 𝑦)) |
14 | 13 | adantll 713 | . . . . . . . . . . 11 ⊢ (((𝑎 ∈ ℝ* ∧ 𝑏 ∈ ℝ*) ∧ 𝑦 ∈ ℝ*) → (𝑦 < 𝑏 ↔ ¬ 𝑏 ≤ 𝑦)) |
15 | 11, 14 | anbi12d 631 | . . . . . . . . . 10 ⊢ (((𝑎 ∈ ℝ* ∧ 𝑏 ∈ ℝ*) ∧ 𝑦 ∈ ℝ*) → ((𝑎 < 𝑦 ∧ 𝑦 < 𝑏) ↔ (¬ 𝑦 ≤ 𝑎 ∧ ¬ 𝑏 ≤ 𝑦))) |
16 | 15 | rabbidva 3450 | . . . . . . . . 9 ⊢ ((𝑎 ∈ ℝ* ∧ 𝑏 ∈ ℝ*) → {𝑦 ∈ ℝ* ∣ (𝑎 < 𝑦 ∧ 𝑦 < 𝑏)} = {𝑦 ∈ ℝ* ∣ (¬ 𝑦 ≤ 𝑎 ∧ ¬ 𝑏 ≤ 𝑦)}) |
17 | 16 | mpoeq3ia 7528 | . . . . . . . 8 ⊢ (𝑎 ∈ ℝ*, 𝑏 ∈ ℝ* ↦ {𝑦 ∈ ℝ* ∣ (𝑎 < 𝑦 ∧ 𝑦 < 𝑏)}) = (𝑎 ∈ ℝ*, 𝑏 ∈ ℝ* ↦ {𝑦 ∈ ℝ* ∣ (¬ 𝑦 ≤ 𝑎 ∧ ¬ 𝑏 ≤ 𝑦)}) |
18 | 9, 17 | eqtri 2768 | . . . . . . 7 ⊢ (,) = (𝑎 ∈ ℝ*, 𝑏 ∈ ℝ* ↦ {𝑦 ∈ ℝ* ∣ (¬ 𝑦 ≤ 𝑎 ∧ ¬ 𝑏 ≤ 𝑦)}) |
19 | 18 | rneqi 5962 | . . . . . 6 ⊢ ran (,) = ran (𝑎 ∈ ℝ*, 𝑏 ∈ ℝ* ↦ {𝑦 ∈ ℝ* ∣ (¬ 𝑦 ≤ 𝑎 ∧ ¬ 𝑏 ≤ 𝑦)}) |
20 | 8, 19 | eqtri 2768 | . . . . 5 ⊢ 𝐶 = ran (𝑎 ∈ ℝ*, 𝑏 ∈ ℝ* ↦ {𝑦 ∈ ℝ* ∣ (¬ 𝑦 ≤ 𝑎 ∧ ¬ 𝑏 ≤ 𝑦)}) |
21 | 5, 6, 7, 20 | ordtbas2 23220 | . . . 4 ⊢ ( ≤ ∈ TosetRel → (fi‘(𝐴 ∪ 𝐵)) = ((𝐴 ∪ 𝐵) ∪ 𝐶)) |
22 | 4, 21 | ax-mp 5 | . . 3 ⊢ (fi‘(𝐴 ∪ 𝐵)) = ((𝐴 ∪ 𝐵) ∪ 𝐶) |
23 | 22 | fveq2i 6923 | . 2 ⊢ (topGen‘(fi‘(𝐴 ∪ 𝐵))) = (topGen‘((𝐴 ∪ 𝐵) ∪ 𝐶)) |
24 | 3, 23 | eqtri 2768 | 1 ⊢ (ordTop‘ ≤ ) = (topGen‘((𝐴 ∪ 𝐵) ∪ 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 ↔ wb 206 ∧ wa 395 = wceq 1537 ∈ wcel 2108 {crab 3443 ∪ cun 3974 class class class wbr 5166 ↦ cmpt 5249 ran crn 5701 ‘cfv 6573 (class class class)co 7448 ∈ cmpo 7450 ficfi 9479 +∞cpnf 11321 -∞cmnf 11322 ℝ*cxr 11323 < clt 11324 ≤ cle 11325 (,)cioo 13407 (,]cioc 13408 [,)cico 13409 topGenctg 17497 ordTopcordt 17559 TosetRel ctsr 18635 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 ax-cnex 11240 ax-resscn 11241 ax-1cn 11242 ax-icn 11243 ax-addcl 11244 ax-addrcl 11245 ax-mulcl 11246 ax-mulrcl 11247 ax-mulcom 11248 ax-addass 11249 ax-mulass 11250 ax-distr 11251 ax-i2m1 11252 ax-1ne0 11253 ax-1rid 11254 ax-rnegex 11255 ax-rrecex 11256 ax-cnre 11257 ax-pre-lttri 11258 ax-pre-lttrn 11259 ax-pre-ltadd 11260 ax-pre-mulgt0 11261 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-pss 3996 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-int 4971 df-iun 5017 df-br 5167 df-opab 5229 df-mpt 5250 df-tr 5284 df-id 5593 df-eprel 5599 df-po 5607 df-so 5608 df-fr 5652 df-we 5654 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-ord 6398 df-on 6399 df-lim 6400 df-suc 6401 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-riota 7404 df-ov 7451 df-oprab 7452 df-mpo 7453 df-om 7904 df-1st 8030 df-2nd 8031 df-1o 8522 df-2o 8523 df-er 8763 df-en 9004 df-dom 9005 df-sdom 9006 df-fin 9007 df-fi 9480 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11522 df-neg 11523 df-ioo 13411 df-ioc 13412 df-ico 13413 df-icc 13414 df-topgen 17503 df-ordt 17561 df-ps 18636 df-tsr 18637 df-top 22921 df-bases 22974 |
This theorem is referenced by: iocpnfordt 23244 icomnfordt 23245 iooordt 23246 pnfnei 23249 mnfnei 23250 xrtgioo 24847 |
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