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Mirrors > Home > MPE Home > Th. List > prdsdsfn | Structured version Visualization version GIF version |
Description: Structure product distance function. (Contributed by Mario Carneiro, 15-Sep-2015.) |
Ref | Expression |
---|---|
prdsbas.p | ⊢ 𝑃 = (𝑆Xs𝑅) |
prdsbas.s | ⊢ (𝜑 → 𝑆 ∈ 𝑉) |
prdsbas.r | ⊢ (𝜑 → 𝑅 ∈ 𝑊) |
prdsbas.b | ⊢ 𝐵 = (Base‘𝑃) |
prdsbas.i | ⊢ (𝜑 → dom 𝑅 = 𝐼) |
prdsds.l | ⊢ 𝐷 = (dist‘𝑃) |
Ref | Expression |
---|---|
prdsdsfn | ⊢ (𝜑 → 𝐷 Fn (𝐵 × 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2622 | . . 3 ⊢ (𝑓 ∈ 𝐵, 𝑔 ∈ 𝐵 ↦ sup((ran (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(dist‘(𝑅‘𝑥))(𝑔‘𝑥))) ∪ {0}), ℝ*, < )) = (𝑓 ∈ 𝐵, 𝑔 ∈ 𝐵 ↦ sup((ran (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(dist‘(𝑅‘𝑥))(𝑔‘𝑥))) ∪ {0}), ℝ*, < )) | |
2 | xrltso 11974 | . . . 4 ⊢ < Or ℝ* | |
3 | 2 | supex 8369 | . . 3 ⊢ sup((ran (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(dist‘(𝑅‘𝑥))(𝑔‘𝑥))) ∪ {0}), ℝ*, < ) ∈ V |
4 | 1, 3 | fnmpt2i 7239 | . 2 ⊢ (𝑓 ∈ 𝐵, 𝑔 ∈ 𝐵 ↦ sup((ran (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(dist‘(𝑅‘𝑥))(𝑔‘𝑥))) ∪ {0}), ℝ*, < )) Fn (𝐵 × 𝐵) |
5 | prdsbas.p | . . . 4 ⊢ 𝑃 = (𝑆Xs𝑅) | |
6 | prdsbas.s | . . . 4 ⊢ (𝜑 → 𝑆 ∈ 𝑉) | |
7 | prdsbas.r | . . . 4 ⊢ (𝜑 → 𝑅 ∈ 𝑊) | |
8 | prdsbas.b | . . . 4 ⊢ 𝐵 = (Base‘𝑃) | |
9 | prdsbas.i | . . . 4 ⊢ (𝜑 → dom 𝑅 = 𝐼) | |
10 | prdsds.l | . . . 4 ⊢ 𝐷 = (dist‘𝑃) | |
11 | 5, 6, 7, 8, 9, 10 | prdsds 16124 | . . 3 ⊢ (𝜑 → 𝐷 = (𝑓 ∈ 𝐵, 𝑔 ∈ 𝐵 ↦ sup((ran (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(dist‘(𝑅‘𝑥))(𝑔‘𝑥))) ∪ {0}), ℝ*, < ))) |
12 | 11 | fneq1d 5981 | . 2 ⊢ (𝜑 → (𝐷 Fn (𝐵 × 𝐵) ↔ (𝑓 ∈ 𝐵, 𝑔 ∈ 𝐵 ↦ sup((ran (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(dist‘(𝑅‘𝑥))(𝑔‘𝑥))) ∪ {0}), ℝ*, < )) Fn (𝐵 × 𝐵))) |
13 | 4, 12 | mpbiri 248 | 1 ⊢ (𝜑 → 𝐷 Fn (𝐵 × 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1483 ∈ wcel 1990 ∪ cun 3572 {csn 4177 ↦ cmpt 4729 × cxp 5112 dom cdm 5114 ran crn 5115 Fn wfn 5883 ‘cfv 5888 (class class class)co 6650 ↦ cmpt2 6652 supcsup 8346 0cc0 9936 ℝ*cxr 10073 < clt 10074 Basecbs 15857 distcds 15950 Xscprds 16106 |
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-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 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-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 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-om 7066 df-1st 7168 df-2nd 7169 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-oadd 7564 df-er 7742 df-map 7859 df-ixp 7909 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-sup 8348 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-2 11079 df-3 11080 df-4 11081 df-5 11082 df-6 11083 df-7 11084 df-8 11085 df-9 11086 df-n0 11293 df-z 11378 df-dec 11494 df-uz 11688 df-fz 12327 df-struct 15859 df-ndx 15860 df-slot 15861 df-base 15863 df-plusg 15954 df-mulr 15955 df-sca 15957 df-vsca 15958 df-ip 15959 df-tset 15960 df-ple 15961 df-ds 15964 df-hom 15966 df-cco 15967 df-prds 16108 |
This theorem is referenced by: ressprdsds 22176 |
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