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Mirrors > Home > MPE Home > Th. List > Mathboxes > issiga | Structured version Visualization version Unicode version |
Description: An alternative definition of the sigma-algebra, for a given base set. (Contributed by Thierry Arnoux, 19-Sep-2016.) |
Ref | Expression |
---|---|
issiga | sigAlgebra |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfvex 6221 | . . . 4 sigAlgebra | |
2 | elex 3212 | . . . 4 sigAlgebra | |
3 | 1, 2 | jca 554 | . . 3 sigAlgebra |
4 | 3 | a1i 11 | . 2 sigAlgebra |
5 | simpr1 1067 | . . . . 5 | |
6 | elex 3212 | . . . . 5 | |
7 | 5, 6 | syl 17 | . . . 4 |
8 | 7 | a1i 11 | . . 3 |
9 | 8 | anc2ri 581 | . 2 |
10 | df-siga 30171 | . . . 4 sigAlgebra | |
11 | sigaex 30172 | . . . 4 | |
12 | pweq 4161 | . . . . . . 7 | |
13 | 12 | sseq2d 3633 | . . . . . 6 |
14 | sseq1 3626 | . . . . . 6 | |
15 | 13, 14 | sylan9bb 736 | . . . . 5 |
16 | eleq12 2691 | . . . . . 6 | |
17 | simpr 477 | . . . . . . 7 | |
18 | difeq1 3721 | . . . . . . . . . 10 | |
19 | 18 | adantr 481 | . . . . . . . . 9 |
20 | 19 | eleq1d 2686 | . . . . . . . 8 |
21 | eleq2 2690 | . . . . . . . . 9 | |
22 | 21 | adantl 482 | . . . . . . . 8 |
23 | 20, 22 | bitrd 268 | . . . . . . 7 |
24 | 17, 23 | raleqbidv 3152 | . . . . . 6 |
25 | pweq 4161 | . . . . . . . 8 | |
26 | eleq2 2690 | . . . . . . . . 9 | |
27 | 26 | imbi2d 330 | . . . . . . . 8 |
28 | 25, 27 | raleqbidv 3152 | . . . . . . 7 |
29 | 28 | adantl 482 | . . . . . 6 |
30 | 16, 24, 29 | 3anbi123d 1399 | . . . . 5 |
31 | 15, 30 | anbi12d 747 | . . . 4 |
32 | 10, 11, 31 | abfmpel 29455 | . . 3 sigAlgebra |
33 | 32 | a1i 11 | . 2 sigAlgebra |
34 | 4, 9, 33 | pm5.21ndd 369 | 1 sigAlgebra |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 w3a 1037 wceq 1483 wcel 1990 wral 2912 cvv 3200 cdif 3571 wss 3574 cpw 4158 cuni 4436 class class class wbr 4653 cfv 5888 com 7065 cdom 7953 sigAlgebracsiga 30170 |
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 |
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-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-iota 5851 df-fun 5890 df-fv 5896 df-siga 30171 |
This theorem is referenced by: baselsiga 30178 sigasspw 30179 issgon 30186 isrnsigau 30190 dmvlsiga 30192 pwsiga 30193 prsiga 30194 sigainb 30199 insiga 30200 sigapildsys 30225 imambfm 30324 carsgsiga 30384 |
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