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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 12515 | . . . 4 | |
2 | comet.1 | . . . 4 | |
3 | relelfvdm 5453 | . . . 4 | |
4 | 1, 2, 3 | sylancr 410 | . . 3 |
5 | 4 | elexd 2699 | . 2 |
6 | comet.2 | . . 3 | |
7 | xmetf 12522 | . . . . . 6 | |
8 | 2, 7 | syl 14 | . . . . 5 |
9 | 8 | ffnd 5273 | . . . 4 |
10 | xmetcl 12524 | . . . . . . . 8 | |
11 | xmetge0 12537 | . . . . . . . 8 | |
12 | elxrge0 9764 | . . . . . . . 8 | |
13 | 10, 11, 12 | sylanbrc 413 | . . . . . . 7 |
14 | 13 | 3expb 1182 | . . . . . 6 |
15 | 2, 14 | sylan 281 | . . . . 5 |
16 | 15 | ralrimivva 2514 | . . . 4 |
17 | ffnov 5875 | . . . 4 | |
18 | 9, 16, 17 | sylanbrc 413 | . . 3 |
19 | fco 5288 | . . 3 | |
20 | 6, 18, 19 | syl2anc 408 | . 2 |
21 | opelxpi 4571 | . . . . . 6 | |
22 | fvco3 5492 | . . . . . 6 | |
23 | 8, 21, 22 | syl2an 287 | . . . . 5 |
24 | df-ov 5777 | . . . . 5 | |
25 | df-ov 5777 | . . . . . 6 | |
26 | 25 | fveq2i 5424 | . . . . 5 |
27 | 23, 24, 26 | 3eqtr4g 2197 | . . . 4 |
28 | 27 | eqeq1d 2148 | . . 3 |
29 | fveq2 5421 | . . . . . 6 | |
30 | 29 | eqeq1d 2148 | . . . . 5 |
31 | eqeq1 2146 | . . . . 5 | |
32 | 30, 31 | bibi12d 234 | . . . 4 |
33 | comet.3 | . . . . . 6 | |
34 | 33 | ralrimiva 2505 | . . . . 5 |
35 | 34 | adantr 274 | . . . 4 |
36 | 32, 35, 15 | rspcdva 2794 | . . 3 |
37 | xmeteq0 12531 | . . . . 5 | |
38 | 37 | 3expb 1182 | . . . 4 |
39 | 2, 38 | sylan 281 | . . 3 |
40 | 28, 36, 39 | 3bitrd 213 | . 2 |
41 | 6 | adantr 274 | . . . . 5 |
42 | 15 | 3adantr3 1142 | . . . . 5 |
43 | 41, 42 | ffvelrnd 5556 | . . . 4 |
44 | 18 | adantr 274 | . . . . . . 7 |
45 | simpr3 989 | . . . . . . 7 | |
46 | simpr1 987 | . . . . . . 7 | |
47 | 44, 45, 46 | fovrnd 5915 | . . . . . 6 |
48 | simpr2 988 | . . . . . . 7 | |
49 | 44, 45, 48 | fovrnd 5915 | . . . . . 6 |
50 | ge0xaddcl 9769 | . . . . . 6 | |
51 | 47, 49, 50 | syl2anc 408 | . . . . 5 |
52 | 41, 51 | ffvelrnd 5556 | . . . 4 |
53 | 41, 47 | ffvelrnd 5556 | . . . . 5 |
54 | 41, 49 | ffvelrnd 5556 | . . . . 5 |
55 | 53, 54 | xaddcld 9670 | . . . 4 |
56 | 3anrot 967 | . . . . . . 7 | |
57 | xmettri2 12533 | . . . . . . 7 | |
58 | 56, 57 | sylan2br 286 | . . . . . 6 |
59 | 2, 58 | sylan 281 | . . . . 5 |
60 | comet.4 | . . . . . . . 8 | |
61 | 60 | ralrimivva 2514 | . . . . . . 7 |
62 | 61 | adantr 274 | . . . . . 6 |
63 | breq1 3932 | . . . . . . . 8 | |
64 | 29 | breq1d 3939 | . . . . . . . 8 |
65 | 63, 64 | imbi12d 233 | . . . . . . 7 |
66 | breq2 3933 | . . . . . . . 8 | |
67 | fveq2 5421 | . . . . . . . . 9 | |
68 | 67 | breq2d 3941 | . . . . . . . 8 |
69 | 66, 68 | imbi12d 233 | . . . . . . 7 |
70 | 65, 69 | rspc2va 2803 | . . . . . 6 |
71 | 42, 51, 62, 70 | syl21anc 1215 | . . . . 5 |
72 | 59, 71 | mpd 13 | . . . 4 |
73 | comet.5 | . . . . . . 7 | |
74 | 73 | ralrimivva 2514 | . . . . . 6 |
75 | 74 | adantr 274 | . . . . 5 |
76 | fvoveq1 5797 | . . . . . . 7 | |
77 | fveq2 5421 | . . . . . . . 8 | |
78 | 77 | oveq1d 5789 | . . . . . . 7 |
79 | 76, 78 | breq12d 3942 | . . . . . 6 |
80 | oveq2 5782 | . . . . . . . 8 | |
81 | 80 | fveq2d 5425 | . . . . . . 7 |
82 | fveq2 5421 | . . . . . . . 8 | |
83 | 82 | oveq2d 5790 | . . . . . . 7 |
84 | 81, 83 | breq12d 3942 | . . . . . 6 |
85 | 79, 84 | rspc2va 2803 | . . . . 5 |
86 | 47, 49, 75, 85 | syl21anc 1215 | . . . 4 |
87 | 43, 52, 55, 72, 86 | xrletrd 9598 | . . 3 |
88 | 27 | 3adantr3 1142 | . . 3 |
89 | 8 | adantr 274 | . . . . . 6 |
90 | 45, 46 | opelxpd 4572 | . . . . . 6 |
91 | fvco3 5492 | . . . . . 6 | |
92 | 89, 90, 91 | syl2anc 408 | . . . . 5 |
93 | df-ov 5777 | . . . . 5 | |
94 | df-ov 5777 | . . . . . 6 | |
95 | 94 | fveq2i 5424 | . . . . 5 |
96 | 92, 93, 95 | 3eqtr4g 2197 | . . . 4 |
97 | 45, 48 | opelxpd 4572 | . . . . . 6 |
98 | fvco3 5492 | . . . . . 6 | |
99 | 89, 97, 98 | syl2anc 408 | . . . . 5 |
100 | df-ov 5777 | . . . . 5 | |
101 | df-ov 5777 | . . . . . 6 | |
102 | 101 | fveq2i 5424 | . . . . 5 |
103 | 99, 100, 102 | 3eqtr4g 2197 | . . . 4 |
104 | 96, 103 | oveq12d 5792 | . . 3 |
105 | 87, 88, 104 | 3brtr4d 3960 | . 2 |
106 | 5, 20, 40, 105 | isxmetd 12519 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 w3a 962 wceq 1331 wcel 1480 wral 2416 cop 3530 class class class wbr 3929 cxp 4537 cdm 4539 ccom 4543 wrel 4544 wfn 5118 wf 5119 cfv 5123 (class class class)co 5774 cc0 7623 cpnf 7800 cxr 7802 cle 7804 cxad 9560 cicc 9677 cxmet 12152 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-cnex 7714 ax-resscn 7715 ax-1cn 7716 ax-1re 7717 ax-icn 7718 ax-addcl 7719 ax-addrcl 7720 ax-mulcl 7721 ax-mulrcl 7722 ax-addcom 7723 ax-mulcom 7724 ax-addass 7725 ax-mulass 7726 ax-distr 7727 ax-i2m1 7728 ax-0lt1 7729 ax-1rid 7730 ax-0id 7731 ax-rnegex 7732 ax-precex 7733 ax-cnre 7734 ax-pre-ltirr 7735 ax-pre-ltwlin 7736 ax-pre-lttrn 7737 ax-pre-apti 7738 ax-pre-ltadd 7739 ax-pre-mulgt0 7740 |
This theorem depends on definitions: df-bi 116 df-dc 820 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-nel 2404 df-ral 2421 df-rex 2422 df-reu 2423 df-rab 2425 df-v 2688 df-sbc 2910 df-csb 3004 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-if 3475 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-iun 3815 df-br 3930 df-opab 3990 df-mpt 3991 df-id 4215 df-po 4218 df-iso 4219 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 df-iota 5088 df-fun 5125 df-fn 5126 df-f 5127 df-fv 5131 df-riota 5730 df-ov 5777 df-oprab 5778 df-mpo 5779 df-1st 6038 df-2nd 6039 df-map 6544 df-pnf 7805 df-mnf 7806 df-xr 7807 df-ltxr 7808 df-le 7809 df-sub 7938 df-neg 7939 df-2 8782 df-xadd 9563 df-icc 9681 df-xmet 12160 |
This theorem is referenced by: bdxmet 12673 |
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