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Mirrors > Home > MPE Home > Th. List > iscfil3 | Structured version Visualization version Unicode version |
Description: A filter is Cauchy iff it contains a ball of any chosen size. (Contributed by Mario Carneiro, 15-Oct-2015.) |
Ref | Expression |
---|---|
iscfil3 | CauFil |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cfilfil 23065 | . . 3 CauFil | |
2 | cfil3i 23067 | . . . . 5 CauFil | |
3 | 2 | 3expa 1265 | . . . 4 CauFil |
4 | 3 | ralrimiva 2966 | . . 3 CauFil |
5 | 1, 4 | jca 554 | . 2 CauFil |
6 | simprl 794 | . . 3 | |
7 | rphalfcl 11858 | . . . . . . . 8 | |
8 | 7 | adantl 482 | . . . . . . 7 |
9 | oveq2 6658 | . . . . . . . . . 10 | |
10 | 9 | eleq1d 2686 | . . . . . . . . 9 |
11 | 10 | rexbidv 3052 | . . . . . . . 8 |
12 | 11 | rspcv 3305 | . . . . . . 7 |
13 | 8, 12 | syl 17 | . . . . . 6 |
14 | simprr 796 | . . . . . . . 8 | |
15 | simp-4l 806 | . . . . . . . . . . . 12 | |
16 | simplrl 800 | . . . . . . . . . . . 12 | |
17 | simpllr 799 | . . . . . . . . . . . . 13 | |
18 | 17 | rpred 11872 | . . . . . . . . . . . 12 |
19 | simprl 794 | . . . . . . . . . . . 12 | |
20 | blhalf 22210 | . . . . . . . . . . . 12 | |
21 | 15, 16, 18, 19, 20 | syl22anc 1327 | . . . . . . . . . . 11 |
22 | simprr 796 | . . . . . . . . . . 11 | |
23 | 21, 22 | sseldd 3604 | . . . . . . . . . 10 |
24 | 17 | rpxrd 11873 | . . . . . . . . . . 11 |
25 | 17, 7 | syl 17 | . . . . . . . . . . . . . 14 |
26 | 25 | rpxrd 11873 | . . . . . . . . . . . . 13 |
27 | blssm 22223 | . . . . . . . . . . . . 13 | |
28 | 15, 16, 26, 27 | syl3anc 1326 | . . . . . . . . . . . 12 |
29 | 28, 19 | sseldd 3604 | . . . . . . . . . . 11 |
30 | 28, 22 | sseldd 3604 | . . . . . . . . . . 11 |
31 | elbl2 22195 | . . . . . . . . . . 11 | |
32 | 15, 24, 29, 30, 31 | syl22anc 1327 | . . . . . . . . . 10 |
33 | 23, 32 | mpbid 222 | . . . . . . . . 9 |
34 | 33 | ralrimivva 2971 | . . . . . . . 8 |
35 | raleq 3138 | . . . . . . . . . 10 | |
36 | 35 | raleqbi1dv 3146 | . . . . . . . . 9 |
37 | 36 | rspcev 3309 | . . . . . . . 8 |
38 | 14, 34, 37 | syl2anc 693 | . . . . . . 7 |
39 | 38 | rexlimdvaa 3032 | . . . . . 6 |
40 | 13, 39 | syld 47 | . . . . 5 |
41 | 40 | ralrimdva 2969 | . . . 4 |
42 | 41 | impr 649 | . . 3 |
43 | iscfil2 23064 | . . . 4 CauFil | |
44 | 43 | adantr 481 | . . 3 CauFil |
45 | 6, 42, 44 | mpbir2and 957 | . 2 CauFil |
46 | 5, 45 | impbida 877 | 1 CauFil |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 wceq 1483 wcel 1990 wral 2912 wrex 2913 wss 3574 class class class wbr 4653 cfv 5888 (class class class)co 6650 cr 9935 cxr 10073 clt 10074 cdiv 10684 c2 11070 crp 11832 cxmt 19731 cbl 19733 cfil 21649 CauFilccfil 23050 |
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 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013 |
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-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rmo 2920 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-po 5035 df-so 5036 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-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-1st 7168 df-2nd 7169 df-er 7742 df-map 7859 df-en 7956 df-dom 7957 df-sdom 7958 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-div 10685 df-2 11079 df-rp 11833 df-xneg 11946 df-xadd 11947 df-xmul 11948 df-ico 12181 df-psmet 19738 df-xmet 19739 df-bl 19741 df-fbas 19743 df-fil 21650 df-cfil 23053 |
This theorem is referenced by: equivcfil 23097 flimcfil 23112 |
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