| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 18335) with a component extractor 𝐸 (such as the base set extractor df-base 17236). By virtue of ndxid 17223, 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 17176 | . . 3 ⊢ (𝑆 Struct 𝑋 → 𝑆 ∈ V) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ 𝑆 ∈ V |
| 4 | 1 | structfun 17181 | . 2 ⊢ Fun ◡◡𝑆 |
| 5 | strfv.e | . 2 ⊢ 𝐸 = Slot (𝐸‘ndx) | |
| 6 | strfv.n | . . 3 ⊢ {〈(𝐸‘ndx), 𝐶〉} ⊆ 𝑆 | |
| 7 | opex 5428 | . . . 4 ⊢ 〈(𝐸‘ndx), 𝐶〉 ∈ V | |
| 8 | 7 | snss 4740 | . . 3 ⊢ (〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆 ↔ {〈(𝐸‘ndx), 𝐶〉} ⊆ 𝑆) |
| 9 | 6, 8 | mpbir 233 | . 2 ⊢ 〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆 |
| 10 | 3, 4, 5, 9 | strfv2 17228 | 1 ⊢ (𝐶 ∈ 𝑉 → 𝐶 = (𝐸‘𝑆)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1559 ∈ wcel 2141 Vcvv 3453 ⊆ wss 3902 {csn 4579 〈cop 4585 class class class wbr 5097 ‘cfv 6515 Struct cstr 17172 Slot cslot 17207 ndxcnx 17219 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7712 ax-cnex 11122 ax-resscn 11123 ax-1cn 11124 ax-icn 11125 ax-addcl 11126 ax-addrcl 11127 ax-mulcl 11128 ax-mulrcl 11129 ax-mulcom 11130 ax-addass 11131 ax-mulass 11132 ax-distr 11133 ax-i2m1 11134 ax-1ne0 11135 ax-1rid 11136 ax-rnegex 11137 ax-rrecex 11138 ax-cnre 11139 ax-pre-lttri 11140 ax-pre-lttrn 11141 ax-pre-ltadd 11142 ax-pre-mulgt0 11143 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6282 df-ord 6343 df-on 6344 df-lim 6345 df-suc 6346 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7841 df-1st 7964 df-2nd 7965 df-frecs 8255 df-wrecs 8286 df-recs 8335 df-rdg 8374 df-1o 8430 df-er 8671 df-en 8921 df-dom 8922 df-sdom 8923 df-fin 8924 df-pnf 11211 df-mnf 11212 df-xr 11213 df-ltxr 11214 df-le 11215 df-sub 11409 df-neg 11410 df-nn 12204 df-n0 12475 df-z 12562 df-uz 12833 df-fz 13506 df-struct 17173 df-slot 17208 |
| This theorem is referenced by: strfv3 17230 1strbas 17250 2strbas 17254 2strop 17255 rngbase 17318 rngplusg 17319 rngmulr 17320 srngbase 17329 srngplusg 17330 srngmulr 17331 srnginvl 17332 lmodbase 17345 lmodplusg 17346 lmodsca 17347 lmodvsca 17348 ipsbase 17356 ipsaddg 17357 ipsmulr 17358 ipssca 17359 ipsvsca 17360 ipsip 17361 phlbase 17366 phlplusg 17367 phlsca 17368 phlvsca 17369 phlip 17370 topgrpbas 17381 topgrpplusg 17382 topgrptset 17383 otpsbas 17396 otpstset 17397 otpsle 17398 odrngbas 17423 odrngplusg 17424 odrngmulr 17425 odrngtset 17426 odrngle 17427 odrngds 17428 imassca 17539 imastset 17542 fuccofval 17985 setcbas 18101 catchomfval 18125 catccofval 18127 estrcbas 18147 ipobas 18553 ipolerval 18554 ipotset 18555 cnfldbas 21415 mpocnfldadd 21416 mpocnfldmul 21418 cnfldcj 21420 cnfldtset 21421 cnfldle 21422 cnfldds 21423 cnfldunif 21424 psrbas 21973 psrplusg 21976 psrmulr 21981 psrsca 21986 psrvscafval 21987 trkgbas 28601 trkgdist 28602 trkgitv 28603 idlsrgbas 33660 idlsrgplusg 33661 idlsrgmulr 33663 idlsrgtset 33664 algbase 43711 algaddg 43712 algmulr 43713 algsca 43714 algvsca 43715 rngchomfvalALTV 48849 rngccofvalALTV 48852 ringchomfvalALTV 48883 ringccofvalALTV 48886 catbas 49807 cathomfval 49808 catcofval 49809 mndtcbasval 50161 |
| Copyright terms: Public domain | W3C validator |