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| Mirrors > Home > MPE Home > Th. List > srasca | Structured version Visualization version GIF version | ||
| Description: The set of scalars of a subring algebra. (Contributed by Stefan O'Rear, 27-Nov-2014.) (Revised by Mario Carneiro, 4-Oct-2015.) (Revised by Thierry Arnoux, 16-Jun-2019.) (Proof shortened by AV, 12-Nov-2024.) |
| Ref | Expression |
|---|---|
| srapart.a | ⊢ (𝜑 → 𝐴 = ((subringAlg ‘𝑊)‘𝑆)) |
| srapart.s | ⊢ (𝜑 → 𝑆 ⊆ (Base‘𝑊)) |
| Ref | Expression |
|---|---|
| srasca | ⊢ (𝜑 → (𝑊 ↾s 𝑆) = (Scalar‘𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | scaid 17393 | . . . . 5 ⊢ Scalar = Slot (Scalar‘ndx) | |
| 2 | vscandxnscandx 17402 | . . . . . 6 ⊢ ( ·𝑠 ‘ndx) ≠ (Scalar‘ndx) | |
| 3 | 2 | necomi 3015 | . . . . 5 ⊢ (Scalar‘ndx) ≠ ( ·𝑠 ‘ndx) |
| 4 | 1, 3 | setsnid 17293 | . . . 4 ⊢ (Scalar‘(𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉)) = (Scalar‘((𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉) sSet 〈( ·𝑠 ‘ndx), (.r‘𝑊)〉)) |
| 5 | slotsdifipndx 17413 | . . . . . 6 ⊢ (( ·𝑠 ‘ndx) ≠ (·𝑖‘ndx) ∧ (Scalar‘ndx) ≠ (·𝑖‘ndx)) | |
| 6 | 5 | simpri 491 | . . . . 5 ⊢ (Scalar‘ndx) ≠ (·𝑖‘ndx) |
| 7 | 1, 6 | setsnid 17293 | . . . 4 ⊢ (Scalar‘((𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉) sSet 〈( ·𝑠 ‘ndx), (.r‘𝑊)〉)) = (Scalar‘(((𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉) sSet 〈( ·𝑠 ‘ndx), (.r‘𝑊)〉) sSet 〈(·𝑖‘ndx), (.r‘𝑊)〉)) |
| 8 | 4, 7 | eqtri 2789 | . . 3 ⊢ (Scalar‘(𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉)) = (Scalar‘(((𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉) sSet 〈( ·𝑠 ‘ndx), (.r‘𝑊)〉) sSet 〈(·𝑖‘ndx), (.r‘𝑊)〉)) |
| 9 | ovexd 7458 | . . . 4 ⊢ (𝜑 → (𝑊 ↾s 𝑆) ∈ V) | |
| 10 | 1 | setsid 17292 | . . . 4 ⊢ ((𝑊 ∈ V ∧ (𝑊 ↾s 𝑆) ∈ V) → (𝑊 ↾s 𝑆) = (Scalar‘(𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉))) |
| 11 | 9, 10 | sylan2 605 | . . 3 ⊢ ((𝑊 ∈ V ∧ 𝜑) → (𝑊 ↾s 𝑆) = (Scalar‘(𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉))) |
| 12 | srapart.a | . . . . . 6 ⊢ (𝜑 → 𝐴 = ((subringAlg ‘𝑊)‘𝑆)) | |
| 13 | 12 | adantl 487 | . . . . 5 ⊢ ((𝑊 ∈ V ∧ 𝜑) → 𝐴 = ((subringAlg ‘𝑊)‘𝑆)) |
| 14 | srapart.s | . . . . . 6 ⊢ (𝜑 → 𝑆 ⊆ (Base‘𝑊)) | |
| 15 | sraval 21333 | . . . . . 6 ⊢ ((𝑊 ∈ V ∧ 𝑆 ⊆ (Base‘𝑊)) → ((subringAlg ‘𝑊)‘𝑆) = (((𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉) sSet 〈( ·𝑠 ‘ndx), (.r‘𝑊)〉) sSet 〈(·𝑖‘ndx), (.r‘𝑊)〉)) | |
| 16 | 14, 15 | sylan2 605 | . . . . 5 ⊢ ((𝑊 ∈ V ∧ 𝜑) → ((subringAlg ‘𝑊)‘𝑆) = (((𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉) sSet 〈( ·𝑠 ‘ndx), (.r‘𝑊)〉) sSet 〈(·𝑖‘ndx), (.r‘𝑊)〉)) |
| 17 | 13, 16 | eqtrd 2801 | . . . 4 ⊢ ((𝑊 ∈ V ∧ 𝜑) → 𝐴 = (((𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉) sSet 〈( ·𝑠 ‘ndx), (.r‘𝑊)〉) sSet 〈(·𝑖‘ndx), (.r‘𝑊)〉)) |
| 18 | 17 | fveq2d 6892 | . . 3 ⊢ ((𝑊 ∈ V ∧ 𝜑) → (Scalar‘𝐴) = (Scalar‘(((𝑊 sSet 〈(Scalar‘ndx), (𝑊 ↾s 𝑆)〉) sSet 〈( ·𝑠 ‘ndx), (.r‘𝑊)〉) sSet 〈(·𝑖‘ndx), (.r‘𝑊)〉))) |
| 19 | 8, 11, 18 | 3eqtr4a 2827 | . 2 ⊢ ((𝑊 ∈ V ∧ 𝜑) → (𝑊 ↾s 𝑆) = (Scalar‘𝐴)) |
| 20 | 1 | str0 17274 | . . 3 ⊢ ∅ = (Scalar‘∅) |
| 21 | reldmress 17317 | . . . . 5 ⊢ Rel dom ↾s | |
| 22 | 21 | ovprc1 7462 | . . . 4 ⊢ (¬ 𝑊 ∈ V → (𝑊 ↾s 𝑆) = ∅) |
| 23 | 22 | adantr 486 | . . 3 ⊢ ((¬ 𝑊 ∈ V ∧ 𝜑) → (𝑊 ↾s 𝑆) = ∅) |
| 24 | fv2prc 6930 | . . . . 5 ⊢ (¬ 𝑊 ∈ V → ((subringAlg ‘𝑊)‘𝑆) = ∅) | |
| 25 | 12, 24 | sylan9eqr 2823 | . . . 4 ⊢ ((¬ 𝑊 ∈ V ∧ 𝜑) → 𝐴 = ∅) |
| 26 | 25 | fveq2d 6892 | . . 3 ⊢ ((¬ 𝑊 ∈ V ∧ 𝜑) → (Scalar‘𝐴) = (Scalar‘∅)) |
| 27 | 20, 23, 26 | 3eqtr4a 2827 | . 2 ⊢ ((¬ 𝑊 ∈ V ∧ 𝜑) → (𝑊 ↾s 𝑆) = (Scalar‘𝐴)) |
| 28 | 19, 27 | pm2.61ian 824 | 1 ⊢ (𝜑 → (𝑊 ↾s 𝑆) = (Scalar‘𝐴)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2146 ≠ wne 2961 Vcvv 3458 ⊆ wss 3908 ∅c0 4289 〈cop 4600 ‘cfv 6543 (class class class)co 7423 sSet csts 17248 ndxcnx 17278 Basecbs 17294 ↾s cress 17315 .rcmulr 17336 Scalarcsca 17338 ·𝑠 cvsca 17339 ·𝑖cip 17340 subringAlg csra 21329 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 ax-cnex 11174 ax-resscn 11175 ax-1cn 11176 ax-icn 11177 ax-addcl 11178 ax-addrcl 11179 ax-mulcl 11180 ax-mulrcl 11181 ax-mulcom 11182 ax-addass 11183 ax-mulass 11184 ax-distr 11185 ax-i2m1 11186 ax-1ne0 11187 ax-1rid 11188 ax-rnegex 11189 ax-rrecex 11190 ax-cnre 11191 ax-pre-lttri 11192 ax-pre-lttrn 11193 ax-pre-ltadd 11194 ax-pre-mulgt0 11195 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 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 5561 df-eprel 5566 df-po 5574 df-so 5575 df-fr 5619 df-we 5621 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6309 df-ord 6370 df-on 6371 df-lim 6372 df-suc 6373 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7380 df-ov 7426 df-oprab 7427 df-mpo 7428 df-om 7872 df-2nd 7996 df-frecs 8287 df-wrecs 8318 df-recs 8367 df-rdg 8406 df-er 8703 df-en 8953 df-dom 8954 df-sdom 8955 df-pnf 11263 df-mnf 11264 df-xr 11265 df-ltxr 11266 df-le 11267 df-sub 11461 df-neg 11462 df-nn 12252 df-2 12321 df-3 12322 df-4 12323 df-5 12324 df-6 12325 df-7 12326 df-8 12327 df-sets 17249 df-slot 17267 df-ndx 17279 df-ress 17316 df-sca 17351 df-vsca 17352 df-ip 17353 df-sra 21331 |
| This theorem is used by: sralmod 21345 rlmsca 21356 rlmsca2 21357 frlmip 21965 sraassab 22055 evls1maplmhm 22574 sranlm 24878 srabn 25556 rrxprds 25585 sralvec 34006 drgext0gsca 34013 drgextlsp 34015 fedgmullem1 34050 fedgmullem2 34051 fedgmul 34052 extdg1id 34087 ccfldsrarelvec 34092 ccfldextdgrr 34093 fldextrspunlsplem 34094 fldextrspunlsp 34095 fldextrspunlem1 34096 fldextrspunfld 34097 extdgfialglem1 34113 |
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