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Mirrors > Home > MPE Home > Th. List > Mathboxes > cover2 | Structured version Visualization version Unicode version |
Description: Two ways of expressing the statement "there is a cover of by elements of such that for each set in the cover, ." Note that and must be distinct. (Contributed by Jeff Madsen, 20-Jun-2010.) |
Ref | Expression |
---|---|
cover2.1 | |
cover2.2 |
Ref | Expression |
---|---|
cover2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssrab2 3687 | . . . 4 | |
2 | cover2.1 | . . . . 5 | |
3 | 2 | elpw2 4828 | . . . 4 |
4 | 1, 3 | mpbir 221 | . . 3 |
5 | nfra1 2941 | . . . . 5 | |
6 | 1 | unissi 4461 | . . . . . . . 8 |
7 | 6 | sseli 3599 | . . . . . . 7 |
8 | cover2.2 | . . . . . . 7 | |
9 | 7, 8 | syl6eleqr 2712 | . . . . . 6 |
10 | rsp 2929 | . . . . . . 7 | |
11 | elunirab 4448 | . . . . . . 7 | |
12 | 10, 11 | syl6ibr 242 | . . . . . 6 |
13 | 9, 12 | impbid2 216 | . . . . 5 |
14 | 5, 13 | alrimi 2082 | . . . 4 |
15 | dfcleq 2616 | . . . 4 | |
16 | 14, 15 | sylibr 224 | . . 3 |
17 | unieq 4444 | . . . . . . 7 | |
18 | 17 | eqeq1d 2624 | . . . . . 6 |
19 | 18 | anbi1d 741 | . . . . 5 |
20 | nfrab1 3122 | . . . . . . . 8 | |
21 | 20 | nfeq2 2780 | . . . . . . 7 |
22 | eleq2 2690 | . . . . . . . 8 | |
23 | rabid 3116 | . . . . . . . . 9 | |
24 | 23 | simprbi 480 | . . . . . . . 8 |
25 | 22, 24 | syl6bi 243 | . . . . . . 7 |
26 | 21, 25 | ralrimi 2957 | . . . . . 6 |
27 | 26 | biantrud 528 | . . . . 5 |
28 | 19, 27 | bitr4d 271 | . . . 4 |
29 | 28 | rspcev 3309 | . . 3 |
30 | 4, 16, 29 | sylancr 695 | . 2 |
31 | elpwi 4168 | . . . . . . . . 9 | |
32 | r19.29r 3073 | . . . . . . . . . . 11 | |
33 | 32 | expcom 451 | . . . . . . . . . 10 |
34 | ssrexv 3667 | . . . . . . . . . 10 | |
35 | 33, 34 | sylan9r 690 | . . . . . . . . 9 |
36 | 31, 35 | sylan 488 | . . . . . . . 8 |
37 | eleq2 2690 | . . . . . . . . . 10 | |
38 | 37 | biimpar 502 | . . . . . . . . 9 |
39 | eluni2 4440 | . . . . . . . . 9 | |
40 | 38, 39 | sylib 208 | . . . . . . . 8 |
41 | 36, 40 | impel 485 | . . . . . . 7 |
42 | 41 | anassrs 680 | . . . . . 6 |
43 | 42 | ralrimiva 2966 | . . . . 5 |
44 | 43 | anasss 679 | . . . 4 |
45 | 44 | ancom2s 844 | . . 3 |
46 | 45 | rexlimiva 3028 | . 2 |
47 | 30, 46 | impbii 199 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 wal 1481 wceq 1483 wcel 1990 wral 2912 wrex 2913 crab 2916 cvv 3200 wss 3574 cpw 4158 cuni 4436 |
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-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-in 3581 df-ss 3588 df-pw 4160 df-uni 4437 |
This theorem is referenced by: cover2g 33509 |
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