Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > ispsmet | Unicode version |
Description: Express the predicate " is a pseudometric." (Contributed by Thierry Arnoux, 7-Feb-2018.) |
Ref | Expression |
---|---|
ispsmet | PsMet |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-psmet 12083 | . . . . 5 PsMet | |
2 | id 19 | . . . . . . . 8 | |
3 | 2 | sqxpeqd 4535 | . . . . . . 7 |
4 | 3 | oveq2d 5758 | . . . . . 6 |
5 | raleq 2603 | . . . . . . . . 9 | |
6 | 5 | raleqbi1dv 2611 | . . . . . . . 8 |
7 | 6 | anbi2d 459 | . . . . . . 7 |
8 | 7 | raleqbi1dv 2611 | . . . . . 6 |
9 | 4, 8 | rabeqbidv 2655 | . . . . 5 |
10 | elex 2671 | . . . . 5 | |
11 | xrex 9607 | . . . . . . . 8 | |
12 | sqxpexg 4625 | . . . . . . . 8 | |
13 | mapvalg 6520 | . . . . . . . 8 | |
14 | 11, 12, 13 | sylancr 410 | . . . . . . 7 |
15 | mapex 6516 | . . . . . . . 8 | |
16 | 12, 11, 15 | sylancl 409 | . . . . . . 7 |
17 | 14, 16 | eqeltrd 2194 | . . . . . 6 |
18 | rabexg 4041 | . . . . . 6 | |
19 | 17, 18 | syl 14 | . . . . 5 |
20 | 1, 9, 10, 19 | fvmptd3 5482 | . . . 4 PsMet |
21 | 20 | eleq2d 2187 | . . 3 PsMet |
22 | oveq 5748 | . . . . . . 7 | |
23 | 22 | eqeq1d 2126 | . . . . . 6 |
24 | oveq 5748 | . . . . . . . 8 | |
25 | oveq 5748 | . . . . . . . . 9 | |
26 | oveq 5748 | . . . . . . . . 9 | |
27 | 25, 26 | oveq12d 5760 | . . . . . . . 8 |
28 | 24, 27 | breq12d 3912 | . . . . . . 7 |
29 | 28 | 2ralbidv 2436 | . . . . . 6 |
30 | 23, 29 | anbi12d 464 | . . . . 5 |
31 | 30 | ralbidv 2414 | . . . 4 |
32 | 31 | elrab 2813 | . . 3 |
33 | 21, 32 | syl6bb 195 | . 2 PsMet |
34 | elmapg 6523 | . . . 4 | |
35 | 11, 12, 34 | sylancr 410 | . . 3 |
36 | 35 | anbi1d 460 | . 2 |
37 | 33, 36 | bitrd 187 | 1 PsMet |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1316 wcel 1465 cab 2103 wral 2393 crab 2397 cvv 2660 class class class wbr 3899 cxp 4507 wf 5089 cfv 5093 (class class class)co 5742 cmap 6510 cc0 7588 cxr 7767 cle 7769 cxad 9525 PsMetcpsmet 12075 |
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 588 ax-in2 589 ax-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-13 1476 ax-14 1477 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 ax-sep 4016 ax-pow 4068 ax-pr 4101 ax-un 4325 ax-setind 4422 ax-cnex 7679 ax-resscn 7680 |
This theorem depends on definitions: df-bi 116 df-3an 949 df-tru 1319 df-fal 1322 df-nf 1422 df-sb 1721 df-eu 1980 df-mo 1981 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-ne 2286 df-ral 2398 df-rex 2399 df-rab 2402 df-v 2662 df-sbc 2883 df-csb 2976 df-dif 3043 df-un 3045 df-in 3047 df-ss 3054 df-pw 3482 df-sn 3503 df-pr 3504 df-op 3506 df-uni 3707 df-br 3900 df-opab 3960 df-mpt 3961 df-id 4185 df-xp 4515 df-rel 4516 df-cnv 4517 df-co 4518 df-dm 4519 df-rn 4520 df-iota 5058 df-fun 5095 df-fn 5096 df-f 5097 df-fv 5101 df-ov 5745 df-oprab 5746 df-mpo 5747 df-map 6512 df-pnf 7770 df-mnf 7771 df-xr 7772 df-psmet 12083 |
This theorem is referenced by: psmetdmdm 12420 psmetf 12421 psmet0 12423 psmettri2 12424 psmetres2 12429 xmetpsmet 12465 |
Copyright terms: Public domain | W3C validator |