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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 18519) with a component extractor 𝐸 (such as the base set extractor df-base 17420). By virtue of ndxid 17407, 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 17360 | . . 3 ⊢ (𝑆 Struct 𝑋 → 𝑆 ∈ V) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ 𝑆 ∈ V |
| 4 | 1 | structfun 17365 | . 2 ⊢ Fun ◡◡𝑆 |
| 5 | strfv.e | . 2 ⊢ 𝐸 = Slot (𝐸‘ndx) | |
| 6 | strfv.n | . . 3 ⊢ {〈(𝐸‘ndx), 𝐶〉} ⊆ 𝑆 | |
| 7 | opex 5437 | . . . 4 ⊢ 〈(𝐸‘ndx), 𝐶〉 ∈ V | |
| 8 | 7 | snss 4745 | . . 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 17412 | 1 ⊢ (𝐶 ∈ 𝑉 → 𝐶 = (𝐸‘𝑆)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2147 Vcvv 3454 ⊆ wss 3900 {csn 4588 〈cop 4838 class class class wbr 5106 ‘cfv 6561 Struct cstr 17356 Slot cslot 17391 ndxcnx 17403 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5253 ax-nul 5264 ax-pow 5332 ax-pr 5396 ax-un 7778 ax-cnex 11286 ax-resscn 11287 ax-1cn 11288 ax-icn 11289 ax-addcl 11290 ax-addrcl 11291 ax-mulcl 11292 ax-mulrcl 11293 ax-mulcom 11294 ax-addass 11295 ax-mulass 11296 ax-distr 11297 ax-i2m1 11298 ax-1ne0 11299 ax-1rid 11300 ax-rnegex 11301 ax-rrecex 11302 ax-cnre 11303 ax-pre-lttri 11304 ax-pre-lttrn 11305 ax-pre-ltadd 11306 ax-pre-mulgt0 11307 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5551 df-eprel 5556 df-po 5564 df-so 5565 df-fr 5609 df-we 5611 df-xp 5662 df-rel 5663 df-cnv 5664 df-co 5665 df-dm 5666 df-rn 5667 df-res 5668 df-ima 5669 df-pred 6325 df-ord 6386 df-on 6387 df-lim 6388 df-suc 6389 df-iota 6515 df-fun 6563 df-fn 6564 df-f 6565 df-f1 6566 df-fo 6567 df-f1o 6568 df-fv 6569 df-riota 7403 df-ov 7449 df-oprab 7450 df-mpo 7451 df-om 7905 df-1st 8028 df-2nd 8029 df-frecs 8330 df-wrecs 8361 df-recs 8410 df-rdg 8449 df-1o 8507 df-er 8748 df-en 9005 df-dom 9006 df-sdom 9007 df-fin 9008 df-pnf 11375 df-mnf 11376 df-xr 11377 df-ltxr 11378 df-le 11379 df-sub 11573 df-neg 11574 df-nn 12366 df-n0 12637 df-z 12724 df-uz 12996 df-fz 13670 df-struct 17357 df-slot 17392 |
| This theorem is used by: strfv3 17414 1strbas 17434 2strbas 17438 2strop 17439 rngbase 17502 rngplusg 17503 rngmulr 17504 srngbase 17513 srngplusg 17514 srngmulr 17515 srnginvl 17516 lmodbase 17529 lmodplusg 17530 lmodsca 17531 lmodvsca 17532 ipsbase 17540 ipsaddg 17541 ipsmulr 17542 ipssca 17543 ipsvsca 17544 ipsip 17545 phlbase 17550 phlplusg 17551 phlsca 17552 phlvsca 17553 phlip 17554 topgrpbas 17565 topgrpplusg 17566 topgrptset 17567 otpsbas 17580 otpstset 17581 otpsle 17582 odrngbas 17607 odrngplusg 17608 odrngmulr 17609 odrngtset 17610 odrngle 17611 odrngds 17612 imassca 17723 imastset 17726 fuccofval 18169 setcbas 18285 catchomfval 18309 catccofval 18311 estrcbas 18331 ipobas 18737 ipolerval 18738 ipotset 18739 cnfldbas 21715 mpocnfldadd 21716 mpocnfldmul 21718 cnfldcj 21720 cnfldtset 21721 cnfldle 21722 cnfldds 21723 cnfldunif 21724 psrbas 22275 psrplusg 22278 psrmulr 22283 psrsca 22288 psrvscafval 22289 trkgbas 28940 trkgdist 28941 trkgitv 28942 angmgmlem 29428 angmgmbas 29431 idlsrgbas 34120 idlsrgplusg 34121 idlsrgmulr 34123 idlsrgtset 34124 algbase 44379 algaddg 44380 algmulr 44381 algsca 44382 algvsca 44383 rngchomfvalALTV 49579 rngccofvalALTV 49582 ringchomfvalALTV 49613 ringccofvalALTV 49616 catbas 50563 cathomfval 50564 catcofval 50565 mndtcbasval 50933 |
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