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| Mirrors > Home > MPE Home > Th. List > strfv | Structured version Visualization version GIF version | ||
| Description: Extract a structure component 𝐶 (such as the base set) from a structure 𝑆 (such as a member of Poset, df-poset 18493) with a component extractor 𝐸 (such as the base set extractor df-base 17394). By virtue of ndxid 17381, this can be done without having to refer to the hard-coded numeric index of 𝐸. (Contributed by Mario Carneiro, 6-Oct-2013.) (Revised by Mario Carneiro, 29-Aug-2015.) |
| Ref | Expression |
|---|---|
| strfv.s | ⊢ 𝑆 Struct 𝑋 |
| strfv.e | ⊢ 𝐸 = Slot (𝐸‘ndx) |
| strfv.n | ⊢ {〈(𝐸‘ndx), 𝐶〉} ⊆ 𝑆 |
| Ref | Expression |
|---|---|
| strfv | ⊢ (𝐶 ∈ 𝑉 → 𝐶 = (𝐸‘𝑆)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | strfv.s | . . 3 ⊢ 𝑆 Struct 𝑋 | |
| 2 | structex 17334 | . . 3 ⊢ (𝑆 Struct 𝑋 → 𝑆 ∈ V) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ 𝑆 ∈ V |
| 4 | 1 | structfun 17339 | . 2 ⊢ Fun ◡◡𝑆 |
| 5 | strfv.e | . 2 ⊢ 𝐸 = Slot (𝐸‘ndx) | |
| 6 | strfv.n | . . 3 ⊢ {〈(𝐸‘ndx), 𝐶〉} ⊆ 𝑆 | |
| 7 | opex 5431 | . . . 4 ⊢ 〈(𝐸‘ndx), 𝐶〉 ∈ V | |
| 8 | 7 | snss 4741 | . . 3 ⊢ (〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆 ↔ {〈(𝐸‘ndx), 𝐶〉} ⊆ 𝑆) |
| 9 | 6, 8 | mpbir 234 | . 2 ⊢ 〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆 |
| 10 | 3, 4, 5, 9 | strfv2 17386 | 1 ⊢ (𝐶 ∈ 𝑉 → 𝐶 = (𝐸‘𝑆)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 Vcvv 3450 ⊆ wss 3895 {csn 4584 〈cop 4834 class class class wbr 5102 ‘cfv 6539 Struct cstr 17330 Slot cslot 17365 ndxcnx 17377 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-cnex 11260 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-addrcl 11265 ax-mulcl 11266 ax-mulrcl 11267 ax-mulcom 11268 ax-addass 11269 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1ne0 11273 ax-1rid 11274 ax-rnegex 11275 ax-rrecex 11276 ax-cnre 11277 ax-pre-lttri 11278 ax-pre-lttrn 11279 ax-pre-ltadd 11280 ax-pre-mulgt0 11281 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-riota 7378 df-ov 7424 df-oprab 7425 df-mpo 7426 df-om 7879 df-1st 8002 df-2nd 8003 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-1o 8480 df-er 8721 df-en 8978 df-dom 8979 df-sdom 8980 df-fin 8981 df-pnf 11349 df-mnf 11350 df-xr 11351 df-ltxr 11352 df-le 11353 df-sub 11547 df-neg 11548 df-nn 12340 df-n0 12611 df-z 12698 df-uz 12970 df-fz 13644 df-struct 17331 df-slot 17366 |
| This theorem is used by: strfv3 17388 1strbas 17408 2strbas 17412 2strop 17413 rngbase 17476 rngplusg 17477 rngmulr 17478 srngbase 17487 srngplusg 17488 srngmulr 17489 srnginvl 17490 lmodbase 17503 lmodplusg 17504 lmodsca 17505 lmodvsca 17506 ipsbase 17514 ipsaddg 17515 ipsmulr 17516 ipssca 17517 ipsvsca 17518 ipsip 17519 phlbase 17524 phlplusg 17525 phlsca 17526 phlvsca 17527 phlip 17528 topgrpbas 17539 topgrpplusg 17540 topgrptset 17541 otpsbas 17554 otpstset 17555 otpsle 17556 odrngbas 17581 odrngplusg 17582 odrngmulr 17583 odrngtset 17584 odrngle 17585 odrngds 17586 imassca 17697 imastset 17700 fuccofval 18143 setcbas 18259 catchomfval 18283 catccofval 18285 estrcbas 18305 ipobas 18711 ipolerval 18712 ipotset 18713 cnfldbas 21688 mpocnfldadd 21689 mpocnfldmul 21691 cnfldcj 21693 cnfldtset 21694 cnfldle 21695 cnfldds 21696 cnfldunif 21697 psrbas 22248 psrplusg 22251 psrmulr 22256 psrsca 22261 psrvscafval 22262 trkgbas 28913 trkgdist 28914 trkgitv 28915 angmgmlem 29401 angmgmbas 29404 idlsrgbas 34083 idlsrgplusg 34084 idlsrgmulr 34086 idlsrgtset 34087 algbase 44270 algaddg 44271 algmulr 44272 algsca 44273 algvsca 44274 rngchomfvalALTV 49458 rngccofvalALTV 49461 ringchomfvalALTV 49492 ringccofvalALTV 49495 catbas 50442 cathomfval 50443 catcofval 50444 mndtcbasval 50812 |
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