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| Description: The set of Cauchy sequences on a metric space. |
| Ref | Expression |
|---|---|
| lmfval.1 |
|
| Ref | Expression |
|---|---|
| caufval |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dmexg 3344 |
. . . . 5
| |
| 2 | dmexg 3344 |
. . . . 5
| |
| 3 | 1, 2 | syl 10 |
. . . 4
|
| 4 | lmfval.1 |
. . . 4
| |
| 5 | 3, 4 | syl5eqel 1544 |
. . 3
|
| 6 | axcnex 5239 |
. . . 4
| |
| 7 | xpexg 3249 |
. . . 4
| |
| 8 | 6, 7 | mpan 693 |
. . 3
|
| 9 | abssexg 2737 |
. . 3
| |
| 10 | 5, 8, 9 | 3syl 20 |
. 2
|
| 11 | dmeq 3300 |
. . . . . . . . 9
| |
| 12 | 11 | dmeqd 3302 |
. . . . . . . 8
|
| 13 | 12, 4 | syl6eqr 1517 |
. . . . . . 7
|
| 14 | xpeq2 3191 |
. . . . . . 7
| |
| 15 | 13, 14 | syl 10 |
. . . . . 6
|
| 16 | 15 | sseq2d 2079 |
. . . . 5
|
| 17 | 13 | eleq2d 1533 |
. . . . . . . . . . 11
|
| 18 | 13 | eleq2d 1533 |
. . . . . . . . . . 11
|
| 19 | 17, 18 | 3anbi12d 891 |
. . . . . . . . . 10
|
| 20 | 19 | imbi2d 610 |
. . . . . . . . 9
|
| 21 | 20 | ralbidv 1655 |
. . . . . . . 8
|
| 22 | 21 | rexralbidv 1674 |
. . . . . . 7
|
| 23 | 22 | imbi2d 610 |
. . . . . 6
|
| 24 | 23 | ralbidv 1655 |
. . . . 5
|
| 25 | 16, 24 | anbi12d 626 |
. . . 4
|
| 26 | 25 | abbidv 1569 |
. . 3
|
| 27 | df-cau 7861 |
. . 3
| |
| 28 | 26, 27 | fvopab4g 3764 |
. 2
|
| 29 | 10, 28 | mpdan 702 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: iscau 7874 h2hcau 8788 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 959 ax-gen 960 ax-8 961 ax-9 962 ax-10 963 ax-11 964 ax-12 965 ax-13 966 ax-14 967 ax-17 968 ax-4 970 ax-5o 972 ax-6o 975 ax-9o 1119 ax-10o 1136 ax-16 1206 ax-11o 1213 ax-ext 1452 ax-rep 2683 ax-sep 2693 ax-nul 2700 ax-pow 2732 ax-pr 2769 ax-un 2857 ax-inf2 4597 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 774 df-3an 775 df-ex 978 df-sb 1168 df-eu 1375 df-mo 1376 df-clab 1457 df-cleq 1462 df-clel 1465 df-ne 1579 df-ral 1641 df-rex 1642 df-rab 1644 df-v 1803 df-dif 2039 df-un 2040 df-in 2041 df-ss 2043 df-pss 2045 df-nul 2271 df-if 2352 df-pw 2392 df-sn 2402 df-pr 2403 df-tp 2405 df-op 2406 df-uni 2494 df-br 2610 df-opab 2657 df-tr 2671 df-eprel 2821 df-id 2824 df-po 2831 df-so 2841 df-fr 2907 df-we |