Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > pwsxms | Structured version Visualization version GIF version |
Description: A power of an extended metric space is an extended metric space. (Contributed by Mario Carneiro, 28-Aug-2015.) |
Ref | Expression |
---|---|
pwsms.y | ⊢ 𝑌 = (𝑅 ↑s 𝐼) |
Ref | Expression |
---|---|
pwsxms | ⊢ ((𝑅 ∈ ∞MetSp ∧ 𝐼 ∈ Fin) → 𝑌 ∈ ∞MetSp) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pwsms.y | . . 3 ⊢ 𝑌 = (𝑅 ↑s 𝐼) | |
2 | eqid 2740 | . . 3 ⊢ (Scalar‘𝑅) = (Scalar‘𝑅) | |
3 | 1, 2 | pwsval 17195 | . 2 ⊢ ((𝑅 ∈ ∞MetSp ∧ 𝐼 ∈ Fin) → 𝑌 = ((Scalar‘𝑅)Xs(𝐼 × {𝑅}))) |
4 | fvexd 6786 | . . 3 ⊢ ((𝑅 ∈ ∞MetSp ∧ 𝐼 ∈ Fin) → (Scalar‘𝑅) ∈ V) | |
5 | simpr 485 | . . 3 ⊢ ((𝑅 ∈ ∞MetSp ∧ 𝐼 ∈ Fin) → 𝐼 ∈ Fin) | |
6 | fconst6g 6661 | . . . 4 ⊢ (𝑅 ∈ ∞MetSp → (𝐼 × {𝑅}):𝐼⟶∞MetSp) | |
7 | 6 | adantr 481 | . . 3 ⊢ ((𝑅 ∈ ∞MetSp ∧ 𝐼 ∈ Fin) → (𝐼 × {𝑅}):𝐼⟶∞MetSp) |
8 | eqid 2740 | . . . 4 ⊢ ((Scalar‘𝑅)Xs(𝐼 × {𝑅})) = ((Scalar‘𝑅)Xs(𝐼 × {𝑅})) | |
9 | 8 | prdsxms 23684 | . . 3 ⊢ (((Scalar‘𝑅) ∈ V ∧ 𝐼 ∈ Fin ∧ (𝐼 × {𝑅}):𝐼⟶∞MetSp) → ((Scalar‘𝑅)Xs(𝐼 × {𝑅})) ∈ ∞MetSp) |
10 | 4, 5, 7, 9 | syl3anc 1370 | . 2 ⊢ ((𝑅 ∈ ∞MetSp ∧ 𝐼 ∈ Fin) → ((Scalar‘𝑅)Xs(𝐼 × {𝑅})) ∈ ∞MetSp) |
11 | 3, 10 | eqeltrd 2841 | 1 ⊢ ((𝑅 ∈ ∞MetSp ∧ 𝐼 ∈ Fin) → 𝑌 ∈ ∞MetSp) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1542 ∈ wcel 2110 Vcvv 3431 {csn 4567 × cxp 5588 ⟶wf 6428 ‘cfv 6432 (class class class)co 7271 Fincfn 8716 Scalarcsca 16963 Xscprds 17154 ↑s cpws 17155 ∞MetSpcxms 23468 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2015 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2711 ax-rep 5214 ax-sep 5227 ax-nul 5234 ax-pow 5292 ax-pr 5356 ax-un 7582 ax-cnex 10928 ax-resscn 10929 ax-1cn 10930 ax-icn 10931 ax-addcl 10932 ax-addrcl 10933 ax-mulcl 10934 ax-mulrcl 10935 ax-mulcom 10936 ax-addass 10937 ax-mulass 10938 ax-distr 10939 ax-i2m1 10940 ax-1ne0 10941 ax-1rid 10942 ax-rnegex 10943 ax-rrecex 10944 ax-cnre 10945 ax-pre-lttri 10946 ax-pre-lttrn 10947 ax-pre-ltadd 10948 ax-pre-mulgt0 10949 ax-pre-sup 10950 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2072 df-mo 2542 df-eu 2571 df-clab 2718 df-cleq 2732 df-clel 2818 df-nfc 2891 df-ne 2946 df-nel 3052 df-ral 3071 df-rex 3072 df-reu 3073 df-rmo 3074 df-rab 3075 df-v 3433 df-sbc 3721 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4846 df-int 4886 df-iun 4932 df-iin 4933 df-br 5080 df-opab 5142 df-mpt 5163 df-tr 5197 df-id 5490 df-eprel 5496 df-po 5504 df-so 5505 df-fr 5545 df-we 5547 df-xp 5596 df-rel 5597 df-cnv 5598 df-co 5599 df-dm 5600 df-rn 5601 df-res 5602 df-ima 5603 df-pred 6201 df-ord 6268 df-on 6269 df-lim 6270 df-suc 6271 df-iota 6390 df-fun 6434 df-fn 6435 df-f 6436 df-f1 6437 df-fo 6438 df-f1o 6439 df-fv 6440 df-riota 7228 df-ov 7274 df-oprab 7275 df-mpo 7276 df-om 7707 df-1st 7824 df-2nd 7825 df-frecs 8088 df-wrecs 8119 df-recs 8193 df-rdg 8232 df-1o 8288 df-er 8481 df-map 8600 df-ixp 8669 df-en 8717 df-dom 8718 df-sdom 8719 df-fin 8720 df-fi 9148 df-sup 9179 df-inf 9180 df-pnf 11012 df-mnf 11013 df-xr 11014 df-ltxr 11015 df-le 11016 df-sub 11207 df-neg 11208 df-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12437 df-uz 12582 df-q 12688 df-rp 12730 df-xneg 12847 df-xadd 12848 df-xmul 12849 df-icc 13085 df-fz 13239 df-struct 16846 df-slot 16881 df-ndx 16893 df-base 16911 df-plusg 16973 df-mulr 16974 df-sca 16976 df-vsca 16977 df-ip 16978 df-tset 16979 df-ple 16980 df-ds 16982 df-hom 16984 df-cco 16985 df-rest 17131 df-topn 17132 df-topgen 17152 df-pt 17153 df-prds 17156 df-pws 17158 df-psmet 20587 df-xmet 20588 df-bl 20590 df-mopn 20591 df-top 22041 df-topon 22058 df-topsp 22080 df-bases 22094 df-xms 23471 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |