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| Mirrors > Home > ILE Home > Th. List > comet | Unicode version | ||
| Description: The composition of an extended metric with a monotonic subadditive function is an extended metric. (Contributed by Mario Carneiro, 21-Mar-2015.) |
| Ref | Expression |
|---|---|
| comet.1 |
|
| comet.2 |
|
| comet.3 |
|
| comet.4 |
|
| comet.5 |
|
| Ref | Expression |
|---|---|
| comet |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xmetrel 15066 |
. . . 4
| |
| 2 | comet.1 |
. . . 4
| |
| 3 | relelfvdm 5671 |
. . . 4
| |
| 4 | 1, 2, 3 | sylancr 414 |
. . 3
|
| 5 | 4 | elexd 2816 |
. 2
|
| 6 | comet.2 |
. . 3
| |
| 7 | xmetf 15073 |
. . . . . 6
| |
| 8 | 2, 7 | syl 14 |
. . . . 5
|
| 9 | 8 | ffnd 5483 |
. . . 4
|
| 10 | xmetcl 15075 |
. . . . . . . 8
| |
| 11 | xmetge0 15088 |
. . . . . . . 8
| |
| 12 | elxrge0 10212 |
. . . . . . . 8
| |
| 13 | 10, 11, 12 | sylanbrc 417 |
. . . . . . 7
|
| 14 | 13 | 3expb 1230 |
. . . . . 6
|
| 15 | 2, 14 | sylan 283 |
. . . . 5
|
| 16 | 15 | ralrimivva 2614 |
. . . 4
|
| 17 | ffnov 6124 |
. . . 4
| |
| 18 | 9, 16, 17 | sylanbrc 417 |
. . 3
|
| 19 | fco 5500 |
. . 3
| |
| 20 | 6, 18, 19 | syl2anc 411 |
. 2
|
| 21 | opelxpi 4757 |
. . . . . 6
| |
| 22 | fvco3 5717 |
. . . . . 6
| |
| 23 | 8, 21, 22 | syl2an 289 |
. . . . 5
|
| 24 | df-ov 6020 |
. . . . 5
| |
| 25 | df-ov 6020 |
. . . . . 6
| |
| 26 | 25 | fveq2i 5642 |
. . . . 5
|
| 27 | 23, 24, 26 | 3eqtr4g 2289 |
. . . 4
|
| 28 | 27 | eqeq1d 2240 |
. . 3
|
| 29 | fveq2 5639 |
. . . . . 6
| |
| 30 | 29 | eqeq1d 2240 |
. . . . 5
|
| 31 | eqeq1 2238 |
. . . . 5
| |
| 32 | 30, 31 | bibi12d 235 |
. . . 4
|
| 33 | comet.3 |
. . . . . 6
| |
| 34 | 33 | ralrimiva 2605 |
. . . . 5
|
| 35 | 34 | adantr 276 |
. . . 4
|
| 36 | 32, 35, 15 | rspcdva 2915 |
. . 3
|
| 37 | xmeteq0 15082 |
. . . . 5
| |
| 38 | 37 | 3expb 1230 |
. . . 4
|
| 39 | 2, 38 | sylan 283 |
. . 3
|
| 40 | 28, 36, 39 | 3bitrd 214 |
. 2
|
| 41 | 6 | adantr 276 |
. . . . 5
|
| 42 | 15 | 3adantr3 1184 |
. . . . 5
|
| 43 | 41, 42 | ffvelcdmd 5783 |
. . . 4
|
| 44 | 18 | adantr 276 |
. . . . . . 7
|
| 45 | simpr3 1031 |
. . . . . . 7
| |
| 46 | simpr1 1029 |
. . . . . . 7
| |
| 47 | 44, 45, 46 | fovcdmd 6166 |
. . . . . 6
|
| 48 | simpr2 1030 |
. . . . . . 7
| |
| 49 | 44, 45, 48 | fovcdmd 6166 |
. . . . . 6
|
| 50 | ge0xaddcl 10217 |
. . . . . 6
| |
| 51 | 47, 49, 50 | syl2anc 411 |
. . . . 5
|
| 52 | 41, 51 | ffvelcdmd 5783 |
. . . 4
|
| 53 | 41, 47 | ffvelcdmd 5783 |
. . . . 5
|
| 54 | 41, 49 | ffvelcdmd 5783 |
. . . . 5
|
| 55 | 53, 54 | xaddcld 10118 |
. . . 4
|
| 56 | 3anrot 1009 |
. . . . . . 7
| |
| 57 | xmettri2 15084 |
. . . . . . 7
| |
| 58 | 56, 57 | sylan2br 288 |
. . . . . 6
|
| 59 | 2, 58 | sylan 283 |
. . . . 5
|
| 60 | comet.4 |
. . . . . . . 8
| |
| 61 | 60 | ralrimivva 2614 |
. . . . . . 7
|
| 62 | 61 | adantr 276 |
. . . . . 6
|
| 63 | breq1 4091 |
. . . . . . . 8
| |
| 64 | 29 | breq1d 4098 |
. . . . . . . 8
|
| 65 | 63, 64 | imbi12d 234 |
. . . . . . 7
|
| 66 | breq2 4092 |
. . . . . . . 8
| |
| 67 | fveq2 5639 |
. . . . . . . . 9
| |
| 68 | 67 | breq2d 4100 |
. . . . . . . 8
|
| 69 | 66, 68 | imbi12d 234 |
. . . . . . 7
|
| 70 | 65, 69 | rspc2va 2924 |
. . . . . 6
|
| 71 | 42, 51, 62, 70 | syl21anc 1272 |
. . . . 5
|
| 72 | 59, 71 | mpd 13 |
. . . 4
|
| 73 | comet.5 |
. . . . . . 7
| |
| 74 | 73 | ralrimivva 2614 |
. . . . . 6
|
| 75 | 74 | adantr 276 |
. . . . 5
|
| 76 | fvoveq1 6040 |
. . . . . . 7
| |
| 77 | fveq2 5639 |
. . . . . . . 8
| |
| 78 | 77 | oveq1d 6032 |
. . . . . . 7
|
| 79 | 76, 78 | breq12d 4101 |
. . . . . 6
|
| 80 | oveq2 6025 |
. . . . . . . 8
| |
| 81 | 80 | fveq2d 5643 |
. . . . . . 7
|
| 82 | fveq2 5639 |
. . . . . . . 8
| |
| 83 | 82 | oveq2d 6033 |
. . . . . . 7
|
| 84 | 81, 83 | breq12d 4101 |
. . . . . 6
|
| 85 | 79, 84 | rspc2va 2924 |
. . . . 5
|
| 86 | 47, 49, 75, 85 | syl21anc 1272 |
. . . 4
|
| 87 | 43, 52, 55, 72, 86 | xrletrd 10046 |
. . 3
|
| 88 | 27 | 3adantr3 1184 |
. . 3
|
| 89 | 8 | adantr 276 |
. . . . . 6
|
| 90 | 45, 46 | opelxpd 4758 |
. . . . . 6
|
| 91 | fvco3 5717 |
. . . . . 6
| |
| 92 | 89, 90, 91 | syl2anc 411 |
. . . . 5
|
| 93 | df-ov 6020 |
. . . . 5
| |
| 94 | df-ov 6020 |
. . . . . 6
| |
| 95 | 94 | fveq2i 5642 |
. . . . 5
|
| 96 | 92, 93, 95 | 3eqtr4g 2289 |
. . . 4
|
| 97 | 45, 48 | opelxpd 4758 |
. . . . . 6
|
| 98 | fvco3 5717 |
. . . . . 6
| |
| 99 | 89, 97, 98 | syl2anc 411 |
. . . . 5
|
| 100 | df-ov 6020 |
. . . . 5
| |
| 101 | df-ov 6020 |
. . . . . 6
| |
| 102 | 101 | fveq2i 5642 |
. . . . 5
|
| 103 | 99, 100, 102 | 3eqtr4g 2289 |
. . . 4
|
| 104 | 96, 103 | oveq12d 6035 |
. . 3
|
| 105 | 87, 88, 104 | 3brtr4d 4120 |
. 2
|
| 106 | 5, 20, 40, 105 | isxmetd 15070 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8122 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-mulrcl 8130 ax-addcom 8131 ax-mulcom 8132 ax-addass 8133 ax-mulass 8134 ax-distr 8135 ax-i2m1 8136 ax-0lt1 8137 ax-1rid 8138 ax-0id 8139 ax-rnegex 8140 ax-precex 8141 ax-cnre 8142 ax-pre-ltirr 8143 ax-pre-ltwlin 8144 ax-pre-lttrn 8145 ax-pre-apti 8146 ax-pre-ltadd 8147 ax-pre-mulgt0 8148 |
| This theorem depends on definitions: df-bi 117 df-dc 842 df-3or 1005 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-if 3606 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-po 4393 df-iso 4394 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-fv 5334 df-riota 5970 df-ov 6020 df-oprab 6021 df-mpo 6022 df-1st 6302 df-2nd 6303 df-map 6818 df-pnf 8215 df-mnf 8216 df-xr 8217 df-ltxr 8218 df-le 8219 df-sub 8351 df-neg 8352 df-2 9201 df-xadd 10007 df-icc 10129 df-xmet 14557 |
| This theorem is referenced by: bdxmet 15224 |
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