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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 2737 | . 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 46783 | 1 ⊢ (𝜑 → 𝑃 ∈ (𝑆 ↾t 𝐷)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2108 {crab 3436 𝒫 cpw 4608 ◡ccnv 5692 dom cdm 5693 ran crn 5694 “ cima 5696 ‘cfv 6569 (class class class)co 7438 ℝcr 11161 (,)cioo 13393 ↾t crest 17476 topGenctg 17493 SAlgcsalg 46292 SalGencsalgen 46296 SMblFncsmblfn 46679 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2708 ax-rep 5288 ax-sep 5305 ax-nul 5315 ax-pow 5374 ax-pr 5441 ax-un 7761 ax-inf2 9688 ax-cc 10482 ax-ac2 10510 ax-cnex 11218 ax-resscn 11219 ax-1cn 11220 ax-icn 11221 ax-addcl 11222 ax-addrcl 11223 ax-mulcl 11224 ax-mulrcl 11225 ax-mulcom 11226 ax-addass 11227 ax-mulass 11228 ax-distr 11229 ax-i2m1 11230 ax-1ne0 11231 ax-1rid 11232 ax-rnegex 11233 ax-rrecex 11234 ax-cnre 11235 ax-pre-lttri 11236 ax-pre-lttrn 11237 ax-pre-ltadd 11238 ax-pre-mulgt0 11239 ax-pre-sup 11240 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2065 df-mo 2540 df-eu 2569 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2892 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3380 df-reu 3381 df-rab 3437 df-v 3483 df-sbc 3795 df-csb 3912 df-dif 3969 df-un 3971 df-in 3973 df-ss 3983 df-pss 3986 df-nul 4343 df-if 4535 df-pw 4610 df-sn 4635 df-pr 4637 df-op 4641 df-uni 4916 df-int 4955 df-iun 5001 df-iin 5002 df-br 5152 df-opab 5214 df-mpt 5235 df-tr 5269 df-id 5587 df-eprel 5593 df-po 5601 df-so 5602 df-fr 5645 df-se 5646 df-we 5647 df-xp 5699 df-rel 5700 df-cnv 5701 df-co 5702 df-dm 5703 df-rn 5704 df-res 5705 df-ima 5706 df-pred 6329 df-ord 6395 df-on 6396 df-lim 6397 df-suc 6398 df-iota 6522 df-fun 6571 df-fn 6572 df-f 6573 df-f1 6574 df-fo 6575 df-f1o 6576 df-fv 6577 df-isom 6578 df-riota 7395 df-ov 7441 df-oprab 7442 df-mpo 7443 df-om 7895 df-1st 8022 df-2nd 8023 df-frecs 8314 df-wrecs 8345 df-recs 8419 df-rdg 8458 df-1o 8514 df-2o 8515 df-oadd 8518 df-omul 8519 df-er 8753 df-map 8876 df-pm 8877 df-en 8994 df-dom 8995 df-sdom 8996 df-fin 8997 df-sup 9489 df-inf 9490 df-oi 9557 df-card 9986 df-acn 9989 df-ac 10163 df-pnf 11304 df-mnf 11305 df-xr 11306 df-ltxr 11307 df-le 11308 df-sub 11501 df-neg 11502 df-div 11928 df-nn 12274 df-n0 12534 df-z 12621 df-uz 12886 df-q 12998 df-rp 13042 df-ioo 13397 df-ico 13399 df-fl 13838 df-rest 17478 df-topgen 17499 df-top 22925 df-bases 22978 df-salg 46293 df-salgen 46297 df-smblfn 46680 |
This theorem is referenced by: smfco 46786 smfpimcc 46792 |
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