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Mirrors > Home > MPE Home > Th. List > flffbas | Structured version Visualization version Unicode version |
Description: Limit points of a function can be defined using filter bases. (Contributed by Jeff Hankins, 9-Nov-2009.) (Revised by Mario Carneiro, 26-Aug-2015.) |
Ref | Expression |
---|---|
flffbas.l |
Ref | Expression |
---|---|
flffbas | TopOn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | flffbas.l | . . . 4 | |
2 | fgcl 21682 | . . . 4 | |
3 | 1, 2 | syl5eqel 2705 | . . 3 |
4 | isflf 21797 | . . 3 TopOn | |
5 | 3, 4 | syl3an2 1360 | . 2 TopOn |
6 | 1 | eleq2i 2693 | . . . . . . . 8 |
7 | elfg 21675 | . . . . . . . . . . 11 | |
8 | 7 | 3ad2ant2 1083 | . . . . . . . . . 10 TopOn |
9 | sstr2 3610 | . . . . . . . . . . . . . . . 16 | |
10 | imass2 5501 | . . . . . . . . . . . . . . . 16 | |
11 | 9, 10 | syl11 33 | . . . . . . . . . . . . . . 15 |
12 | 11 | adantl 482 | . . . . . . . . . . . . . 14 TopOn |
13 | 12 | reximdv 3016 | . . . . . . . . . . . . 13 TopOn |
14 | 13 | ex 450 | . . . . . . . . . . . 12 TopOn |
15 | 14 | com23 86 | . . . . . . . . . . 11 TopOn |
16 | 15 | adantld 483 | . . . . . . . . . 10 TopOn |
17 | 8, 16 | sylbid 230 | . . . . . . . . 9 TopOn |
18 | 17 | adantr 481 | . . . . . . . 8 TopOn |
19 | 6, 18 | syl5bi 232 | . . . . . . 7 TopOn |
20 | 19 | rexlimdv 3030 | . . . . . 6 TopOn |
21 | ssfg 21676 | . . . . . . . . . . . 12 | |
22 | 21, 1 | syl6sseqr 3652 | . . . . . . . . . . 11 |
23 | 22 | sselda 3603 | . . . . . . . . . 10 |
24 | 23 | 3ad2antl2 1224 | . . . . . . . . 9 TopOn |
25 | 24 | ad2ant2r 783 | . . . . . . . 8 TopOn |
26 | simprr 796 | . . . . . . . 8 TopOn | |
27 | imaeq2 5462 | . . . . . . . . . 10 | |
28 | 27 | sseq1d 3632 | . . . . . . . . 9 |
29 | 28 | rspcev 3309 | . . . . . . . 8 |
30 | 25, 26, 29 | syl2anc 693 | . . . . . . 7 TopOn |
31 | 30 | rexlimdvaa 3032 | . . . . . 6 TopOn |
32 | 20, 31 | impbid 202 | . . . . 5 TopOn |
33 | 32 | imbi2d 330 | . . . 4 TopOn |
34 | 33 | ralbidv 2986 | . . 3 TopOn |
35 | 34 | pm5.32da 673 | . 2 TopOn |
36 | 5, 35 | bitrd 268 | 1 TopOn |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 w3a 1037 wceq 1483 wcel 1990 wral 2912 wrex 2913 wss 3574 cima 5117 wf 5884 cfv 5888 (class class class)co 6650 cfbas 19734 cfg 19735 TopOnctopon 20715 cfil 21649 cflf 21739 |
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-rep 4771 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-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-nel 2898 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-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 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-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-map 7859 df-fbas 19743 df-fg 19744 df-top 20699 df-topon 20716 df-ntr 20824 df-nei 20902 df-fil 21650 df-fm 21742 df-flim 21743 df-flf 21744 |
This theorem is referenced by: lmflf 21809 eltsms 21936 |
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