| Mathbox for Thierry Arnoux |
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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 17167 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 = (Base‘𝐻)) |
| 4 | 3 | 3ad2ant3 1136 | . . 3 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝐴 = (Base‘𝐻)) |
| 5 | 2 | fvexi 6847 | . . . . . . 7 ⊢ 𝐵 ∈ V |
| 6 | 5 | ssex 5265 | . . . . . 6 ⊢ (𝐴 ⊆ 𝐵 → 𝐴 ∈ V) |
| 7 | eqid 2735 | . . . . . . 7 ⊢ (dist‘𝐺) = (dist‘𝐺) | |
| 8 | 1, 7 | ressds 17332 | . . . . . 6 ⊢ (𝐴 ∈ V → (dist‘𝐺) = (dist‘𝐻)) |
| 9 | 6, 8 | syl 17 | . . . . 5 ⊢ (𝐴 ⊆ 𝐵 → (dist‘𝐺) = (dist‘𝐻)) |
| 10 | 9 | 3ad2ant3 1136 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (dist‘𝐺) = (dist‘𝐻)) |
| 11 | eqidd 2736 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 𝑥 = 𝑥) | |
| 12 | ressnm.3 | . . . . 5 ⊢ 0 = (0g‘𝐺) | |
| 13 | 1, 2, 12 | ress0g 18689 | . . . 4 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → 0 = (0g‘𝐻)) |
| 14 | 10, 11, 13 | oveq123d 7379 | . . 3 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑥(dist‘𝐺) 0 ) = (𝑥(dist‘𝐻)(0g‘𝐻))) |
| 15 | 4, 14 | mpteq12dv 5184 | . 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 24534 | . . . . 5 ⊢ 𝑁 = (𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) |
| 18 | 17 | reseq1i 5933 | . . . 4 ⊢ (𝑁 ↾ 𝐴) = ((𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) ↾ 𝐴) |
| 19 | resmpt 5995 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → ((𝑥 ∈ 𝐵 ↦ (𝑥(dist‘𝐺) 0 )) ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) | |
| 20 | 18, 19 | eqtrid 2782 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → (𝑁 ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) |
| 21 | 20 | 3ad2ant3 1136 | . 2 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑁 ↾ 𝐴) = (𝑥 ∈ 𝐴 ↦ (𝑥(dist‘𝐺) 0 ))) |
| 22 | eqid 2735 | . . . 4 ⊢ (norm‘𝐻) = (norm‘𝐻) | |
| 23 | eqid 2735 | . . . 4 ⊢ (Base‘𝐻) = (Base‘𝐻) | |
| 24 | eqid 2735 | . . . 4 ⊢ (0g‘𝐻) = (0g‘𝐻) | |
| 25 | eqid 2735 | . . . 4 ⊢ (dist‘𝐻) = (dist‘𝐻) | |
| 26 | 22, 23, 24, 25 | nmfval 24534 | . . 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 2780 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 0 ∈ 𝐴 ∧ 𝐴 ⊆ 𝐵) → (𝑁 ↾ 𝐴) = (norm‘𝐻)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 Vcvv 3439 ⊆ wss 3900 ↦ cmpt 5178 ↾ cres 5625 ‘cfv 6491 (class class class)co 7358 Basecbs 17138 ↾s cress 17159 distcds 17188 0gc0g 17361 Mndcmnd 18661 normcnm 24522 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2183 ax-ext 2707 ax-sep 5240 ax-nul 5250 ax-pow 5309 ax-pr 5376 ax-un 7680 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2932 df-nel 3036 df-ral 3051 df-rex 3060 df-rmo 3349 df-reu 3350 df-rab 3399 df-v 3441 df-sbc 3740 df-csb 3849 df-dif 3903 df-un 3905 df-in 3907 df-ss 3917 df-pss 3920 df-nul 4285 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-iun 4947 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5518 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-we 5578 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-pred 6258 df-ord 6319 df-on 6320 df-lim 6321 df-suc 6322 df-iota 6447 df-fun 6493 df-fn 6494 df-f 6495 df-f1 6496 df-fo 6497 df-f1o 6498 df-fv 6499 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-er 8635 df-en 8886 df-dom 8887 df-sdom 8888 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-nn 12148 df-2 12210 df-3 12211 df-4 12212 df-5 12213 df-6 12214 df-7 12215 df-8 12216 df-9 12217 df-n0 12404 df-z 12491 df-dec 12610 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17139 df-ress 17160 df-plusg 17192 df-ds 17201 df-0g 17363 df-mgm 18567 df-sgrp 18646 df-mnd 18662 df-nm 24528 |
| This theorem is referenced by: zringnm 34094 rezh 34105 |
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