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Mirrors > Home > MPE Home > Th. List > ordtbas | Structured version Visualization version Unicode version |
Description: In a total order, the finite intersections of the open rays generates the set of open intervals, but no more - these four collections form a subbasis for the order topology. (Contributed by Mario Carneiro, 3-Sep-2015.) |
Ref | Expression |
---|---|
ordtval.1 | |
ordtval.2 | |
ordtval.3 | |
ordtval.4 |
Ref | Expression |
---|---|
ordtbas |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | snex 4908 | . . . . . 6 | |
2 | ssun2 3777 | . . . . . . 7 | |
3 | ordtval.1 | . . . . . . . . . 10 | |
4 | ordtval.2 | . . . . . . . . . 10 | |
5 | ordtval.3 | . . . . . . . . . 10 | |
6 | 3, 4, 5 | ordtuni 20994 | . . . . . . . . 9 |
7 | dmexg 7097 | . . . . . . . . . 10 | |
8 | 3, 7 | syl5eqel 2705 | . . . . . . . . 9 |
9 | 6, 8 | eqeltrrd 2702 | . . . . . . . 8 |
10 | uniexb 6973 | . . . . . . . 8 | |
11 | 9, 10 | sylibr 224 | . . . . . . 7 |
12 | ssexg 4804 | . . . . . . 7 | |
13 | 2, 11, 12 | sylancr 695 | . . . . . 6 |
14 | elfiun 8336 | . . . . . 6 | |
15 | 1, 13, 14 | sylancr 695 | . . . . 5 |
16 | fisn 8333 | . . . . . . . . 9 | |
17 | ssun1 3776 | . . . . . . . . 9 | |
18 | 16, 17 | eqsstri 3635 | . . . . . . . 8 |
19 | 18 | sseli 3599 | . . . . . . 7 |
20 | 19 | a1i 11 | . . . . . 6 |
21 | ordtval.4 | . . . . . . . . 9 | |
22 | 3, 4, 5, 21 | ordtbas2 20995 | . . . . . . . 8 |
23 | ssun2 3777 | . . . . . . . 8 | |
24 | 22, 23 | syl6eqss 3655 | . . . . . . 7 |
25 | 24 | sseld 3602 | . . . . . 6 |
26 | fipwuni 8332 | . . . . . . . . . . . . . . 15 | |
27 | 26 | sseli 3599 | . . . . . . . . . . . . . 14 |
28 | 27 | elpwid 4170 | . . . . . . . . . . . . 13 |
29 | 28 | ad2antll 765 | . . . . . . . . . . . 12 |
30 | 2 | unissi 4461 | . . . . . . . . . . . . . 14 |
31 | 30, 6 | syl5sseqr 3654 | . . . . . . . . . . . . 13 |
32 | 31 | adantr 481 | . . . . . . . . . . . 12 |
33 | 29, 32 | sstrd 3613 | . . . . . . . . . . 11 |
34 | simprl 794 | . . . . . . . . . . . . 13 | |
35 | 34, 16 | syl6eleq 2711 | . . . . . . . . . . . 12 |
36 | elsni 4194 | . . . . . . . . . . . 12 | |
37 | 35, 36 | syl 17 | . . . . . . . . . . 11 |
38 | 33, 37 | sseqtr4d 3642 | . . . . . . . . . 10 |
39 | sseqin2 3817 | . . . . . . . . . 10 | |
40 | 38, 39 | sylib 208 | . . . . . . . . 9 |
41 | 24 | sselda 3603 | . . . . . . . . . 10 |
42 | 41 | adantrl 752 | . . . . . . . . 9 |
43 | 40, 42 | eqeltrd 2701 | . . . . . . . 8 |
44 | eleq1 2689 | . . . . . . . 8 | |
45 | 43, 44 | syl5ibrcom 237 | . . . . . . 7 |
46 | 45 | rexlimdvva 3038 | . . . . . 6 |
47 | 20, 25, 46 | 3jaod 1392 | . . . . 5 |
48 | 15, 47 | sylbid 230 | . . . 4 |
49 | 48 | ssrdv 3609 | . . 3 |
50 | ssfii 8325 | . . . . . 6 | |
51 | 11, 50 | syl 17 | . . . . 5 |
52 | 51 | unssad 3790 | . . . 4 |
53 | fiss 8330 | . . . . . 6 | |
54 | 11, 2, 53 | sylancl 694 | . . . . 5 |
55 | 22, 54 | eqsstr3d 3640 | . . . 4 |
56 | 52, 55 | unssd 3789 | . . 3 |
57 | 49, 56 | eqssd 3620 | . 2 |
58 | unass 3770 | . 2 | |
59 | 57, 58 | syl6eqr 2674 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wa 384 w3o 1036 wceq 1483 wcel 1990 wrex 2913 crab 2916 cvv 3200 cun 3572 cin 3573 wss 3574 cpw 4158 csn 4177 cuni 4436 class class class wbr 4653 cmpt 4729 cdm 5114 crn 5115 cfv 5888 cmpt2 6652 cfi 8316 ctsr 17199 |
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-3or 1038 df-3an 1039 df-tru 1486 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-reu 2919 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-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 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-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-1st 7168 df-2nd 7169 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-oadd 7564 df-er 7742 df-en 7956 df-fin 7959 df-fi 8317 df-ps 17200 df-tsr 17201 |
This theorem is referenced by: (None) |
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