Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > orvcoel | Structured version Visualization version Unicode version |
Description: If the relation produces open sets, preimage maps by a measurable function are measurable sets. (Contributed by Thierry Arnoux, 21-Jan-2017.) |
Ref | Expression |
---|---|
orvccel.1 | sigAlgebra |
orvccel.2 | |
orvccel.3 | MblFnMsigaGen |
orvccel.4 | |
orvcoel.5 |
Ref | Expression |
---|---|
orvcoel | ∘RV/𝑐 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | orvccel.1 | . . 3 sigAlgebra | |
2 | orvccel.2 | . . 3 | |
3 | orvccel.3 | . . 3 MblFnMsigaGen | |
4 | orvccel.4 | . . 3 | |
5 | 1, 2, 3, 4 | orvcval4 30522 | . 2 ∘RV/𝑐 |
6 | 2 | sgsiga 30205 | . . 3 sigaGen sigAlgebra |
7 | sssigagen 30208 | . . . . 5 sigaGen | |
8 | 2, 7 | syl 17 | . . . 4 sigaGen |
9 | orvcoel.5 | . . . 4 | |
10 | 8, 9 | sseldd 3604 | . . 3 sigaGen |
11 | 1, 6, 3, 10 | mbfmcnvima 30319 | . 2 |
12 | 5, 11 | eqeltrd 2701 | 1 ∘RV/𝑐 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wcel 1990 crab 2916 wss 3574 cuni 4436 class class class wbr 4653 ccnv 5113 crn 5115 cima 5117 cfv 5888 (class class class)co 6650 ctop 20698 sigAlgebracsiga 30170 sigaGencsigagen 30201 MblFnMcmbfm 30312 ∘RV/𝑐corvc 30517 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-fal 1489 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-fo 5894 df-fv 5896 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-1st 7168 df-2nd 7169 df-map 7859 df-siga 30171 df-sigagen 30202 df-mbfm 30313 df-orvc 30518 |
This theorem is referenced by: orrvcoel 30527 |
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