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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ressnm | Structured version Visualization version GIF version | ||
| Description: The norm in a restricted structure. (Contributed by Thierry Arnoux, 8-Oct-2017.) |
| Ref | Expression |
|---|---|
| ressnm.1 | ⊢ 𝐻 = (𝐺 ↾s 𝐴) |
| ressnm.2 | ⊢ 𝐵 = (Base‘𝐺) |
| ressnm.3 | ⊢ 0 = (0g‘𝐺) |
| ressnm.4 | ⊢ 𝑁 = (norm‘𝐺) |
| Ref | Expression |
|---|---|
| ressnm | ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑁 ↾ 𝐴) = (norm‘𝐻)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ressnm.1 | . . . . 5 ⊢ 𝐻 = (𝐺 ↾s 𝐴) | |
| 2 | ressnm.2 | . . . . 5 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | 1, 2 | ressbas2 17301 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 = (Base‘𝐻)) |
| 4 | 3 | 3ad2ant3 1151 | . . 3 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 = (Base‘𝐻)) |
| 5 | 2 | fvexi 6899 | . . . . . . 7 ⊢ 𝐵 ∈ V |
| 6 | 5 | ssex 5295 | . . . . . 6 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 ∈ V) |
| 7 | eqid 2770 | . . . . . . 7 ⊢ (dist‘𝐺) = (dist‘𝐺) | |
| 8 | 1, 7 | ressds 17466 | . . . . . 6 ⊢ (𝐴 ∈ V → (dist‘𝐺) = (dist‘𝐻)) |
| 9 | 6, 8 | syl 18 | . . . . 5 ⊢ (𝐴 ⊆ 𝐵 → (dist‘𝐺) = (dist‘𝐻)) |
| 10 | 9 | 3ad2ant3 1151 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (dist‘𝐺) = (dist‘𝐻)) |
| 11 | eqidd 2771 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝑥 = 𝑥) | |
| 12 | ressnm.3 | . . . . 5 ⊢ 0 = (0g‘𝐺) | |
| 13 | 1, 2, 12 | ress0g 18823 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 0 = (0g‘𝐻)) |
| 14 | 10, 11, 13 | oveq123d 7435 | . . 3 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑥(dist‘𝐺) 0 ) = (𝑥(dist‘𝐻)(0g‘𝐻))) |
| 15 | 4, 14 | mpteq12dv 5203 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 )) = (𝑥 ∈ (Base‘𝐻) ↦ (𝑥(dist‘𝐻)(0g‘𝐻)))) |
| 16 | ressnm.4 | . . . . . 6 ⊢ 𝑁 = (norm‘𝐺) | |
| 17 | 16, 2, 12, 7 | nmfval 24728 | . . . . 5 ⊢ 𝑁 = (𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) |
| 18 | 17 | reseq1i 5978 | . . . 4 ⊢ (𝑁 ↾ 𝐴) = ((𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) ↾ 𝐴) |
| 19 | resmpt 6043 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → ((𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) | |
| 20 | 18, 19 | eqtrid 2817 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → (𝑁 ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) |
| 21 | 20 | 3ad2ant3 1151 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑁 ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) |
| 22 | eqid 2770 | . . . 4 ⊢ (norm‘𝐻) = (norm‘𝐻) | |
| 23 | eqid 2770 | . . . 4 ⊢ (Base‘𝐻) = (Base‘𝐻) | |
| 24 | eqid 2770 | . . . 4 ⊢ (0g‘𝐻) = (0g‘𝐻) | |
| 25 | eqid 2770 | . . . 4 ⊢ (dist‘𝐻) = (dist‘𝐻) | |
| 26 | 22, 23, 24, 25 | nmfval 24728 | . . 3 ⊢ (norm‘𝐻) = (𝑥 ∈ (Base‘𝐻) ↦ (𝑥(dist‘𝐻)(0g‘𝐻))) |
| 27 | 26 | a1i 11 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (norm‘𝐻) = (𝑥 ∈ (Base‘𝐻) ↦ (𝑥(dist‘𝐻)(0g‘𝐻)))) |
| 28 | 15, 21, 27 | 3eqtr4d 2815 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑁 ↾ 𝐴) = (norm‘𝐻)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ w3a 1101 = wceq 1568 ∈ wcel 2150 Vcvv 3462 ⊆ wss 3913 ↦ cmpt 5197 ↾ cres 5667 ‘cfv 6540 (class class class)co 7414 Basecbs 17272 ↾s cress 17293 distcds 17322 0gc0g 17495 Mndcmnd 18795 normcnm 24716 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-sep 5262 ax-nul 5274 ax-pow 5340 ax-pr 5408 ax-un 7736 ax-cnex 11159 ax-resscn 11160 ax-1cn 11161 ax-icn 11162 ax-addcl 11163 ax-addrcl 11164 ax-mulcl 11165 ax-mulrcl 11166 ax-mulcom 11167 ax-addass 11168 ax-mulass 11169 ax-distr 11170 ax-i2m1 11171 ax-1ne0 11172 ax-1rid 11173 ax-rnegex 11174 ax-rrecex 11175 ax-cnre 11176 ax-pre-lttri 11177 ax-pre-lttrn 11178 ax-pre-ltadd 11179 ax-pre-mulgt0 11180 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 df-nel 3072 df-ral 3087 df-rex 3097 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3464 df-sbc 3753 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5560 df-eprel 5565 df-po 5573 df-so 5574 df-fr 5618 df-we 5620 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7866 df-2nd 7990 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-er 8697 df-en 8947 df-dom 8948 df-sdom 8949 df-pnf 11248 df-mnf 11249 df-xr 11250 df-ltxr 11251 df-le 11252 df-sub 11446 df-neg 11447 df-nn 12237 df-2 12306 df-3 12307 df-4 12308 df-5 12309 df-6 12310 df-7 12311 df-8 12312 df-9 12313 df-n0 12508 df-z 12595 df-dec 12715 df-sets 17227 df-slot 17245 df-ndx 17257 df-base 17273 df-ress 17294 df-plusg 17326 df-ds 17335 df-0g 17497 df-mgm 18701 df-sgrp 18780 df-mnd 18796 df-nm 24722 |
| This theorem is referenced by: zringnm 34318 rezh 34329 |
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