| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > smfpimbor1 | Structured version Visualization version GIF version | ||
| Description: Given a sigma-measurable function, the preimage of a Borel set belongs to the subspace sigma-algebra induced by the domain of the function. Proposition 121E (f) of [Fremlin1] p. 37 . (Contributed by Glauco Siliprandi, 26-Jun-2021.) |
| Ref | Expression |
|---|---|
| smfpimbor1.s | ⊢ (𝜑 → 𝑆 ∈ SAlg) |
| smfpimbor1.f | ⊢ (𝜑 → 𝐹 ∈ (SMblFn‘𝑆)) |
| smfpimbor1.a | ⊢ 𝐷 = dom 𝐹 |
| smfpimbor1.j | ⊢ 𝐽 = (topGen‘ran (,)) |
| smfpimbor1.b | ⊢ 𝐵 = (SalGen‘𝐽) |
| smfpimbor1.e | ⊢ (𝜑 → 𝐸 ∈ 𝐵) |
| smfpimbor1.p | ⊢ 𝑃 = (◡𝐹 “ 𝐸) |
| Ref | Expression |
|---|---|
| smfpimbor1 | ⊢ (𝜑 → 𝑃 ∈ (𝑆 ↾t 𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | smfpimbor1.s | . 2 ⊢ (𝜑 → 𝑆 ∈ SAlg) | |
| 2 | smfpimbor1.f | . 2 ⊢ (𝜑 → 𝐹 ∈ (SMblFn‘𝑆)) | |
| 3 | smfpimbor1.a | . 2 ⊢ 𝐷 = dom 𝐹 | |
| 4 | smfpimbor1.j | . 2 ⊢ 𝐽 = (topGen‘ran (,)) | |
| 5 | smfpimbor1.b | . 2 ⊢ 𝐵 = (SalGen‘𝐽) | |
| 6 | smfpimbor1.e | . 2 ⊢ (𝜑 → 𝐸 ∈ 𝐵) | |
| 7 | smfpimbor1.p | . 2 ⊢ 𝑃 = (◡𝐹 “ 𝐸) | |
| 8 | eqid 2765 | . 2 ⊢ {𝑒 ∈ 𝒫 ℝ ∣ (◡𝐹 “ 𝑒) ∈ (𝑆 ↾t 𝐷)} = {𝑒 ∈ 𝒫 ℝ ∣ (◡𝐹 “ 𝑒) ∈ (𝑆 ↾t 𝐷)} | |
| 9 | 1, 2, 3, 4, 5, 6, 7, 8 | smfpimbor1lem2 47371 | 1 ⊢ (𝜑 → 𝑃 ∈ (𝑆 ↾t 𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1563 ∈ wcel 2145 {crab 3417 𝒫 cpw 4558 ◡ccnv 5651 dom cdm 5652 ran crn 5653 “ cima 5655 ‘cfv 6525 (class class class)co 7400 ℝcr 11087 (,)cioo 13363 ↾t crest 17463 topGenctg 17480 SAlgcsalg 46880 SalGencsalgen 46884 SMblFncsmblfn 47267 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-rep 5232 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-inf2 9598 ax-cc 10407 ax-ac2 10435 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 ax-pre-sup 11166 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4869 df-int 4909 df-iun 4954 df-iin 4955 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-se 5606 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-isom 6534 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-2o 8442 df-oadd 8445 df-omul 8446 df-er 8682 df-map 8814 df-pm 8815 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-sup 9390 df-inf 9391 df-oi 9460 df-card 9913 df-acn 9916 df-ac 10088 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-nn 12225 df-n0 12496 df-z 12583 df-uz 12854 df-q 12964 df-rp 13008 df-ioo 13367 df-ico 13369 df-fl 13816 df-rest 17465 df-topgen 17486 df-top 23012 df-bases 23064 df-salg 46881 df-salgen 46885 df-smblfn 47268 |
| This theorem is referenced by: smfco 47374 smfpimcc 47380 |
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