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Mirrors > Home > MPE Home > Th. List > estrcid | Structured version Visualization version GIF version |
Description: The identity arrow in the category of extensible structures is the identity function of base sets. (Contributed by AV, 8-Mar-2020.) |
Ref | Expression |
---|---|
estrccat.c | ⊢ 𝐶 = (ExtStrCat‘𝑈) |
estrcid.o | ⊢ 1 = (Id‘𝐶) |
estrcid.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
estrcid.x | ⊢ (𝜑 → 𝑋 ∈ 𝑈) |
Ref | Expression |
---|---|
estrcid | ⊢ (𝜑 → ( 1 ‘𝑋) = ( I ↾ (Base‘𝑋))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | estrcid.o | . . 3 ⊢ 1 = (Id‘𝐶) | |
2 | estrcid.u | . . . . 5 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
3 | estrccat.c | . . . . . 6 ⊢ 𝐶 = (ExtStrCat‘𝑈) | |
4 | 3 | estrccatid 17945 | . . . . 5 ⊢ (𝑈 ∈ 𝑉 → (𝐶 ∈ Cat ∧ (Id‘𝐶) = (𝑥 ∈ 𝑈 ↦ ( I ↾ (Base‘𝑥))))) |
5 | 2, 4 | syl 17 | . . . 4 ⊢ (𝜑 → (𝐶 ∈ Cat ∧ (Id‘𝐶) = (𝑥 ∈ 𝑈 ↦ ( I ↾ (Base‘𝑥))))) |
6 | 5 | simprd 496 | . . 3 ⊢ (𝜑 → (Id‘𝐶) = (𝑥 ∈ 𝑈 ↦ ( I ↾ (Base‘𝑥)))) |
7 | 1, 6 | eqtrid 2788 | . 2 ⊢ (𝜑 → 1 = (𝑥 ∈ 𝑈 ↦ ( I ↾ (Base‘𝑥)))) |
8 | fveq2 6825 | . . . 4 ⊢ (𝑥 = 𝑋 → (Base‘𝑥) = (Base‘𝑋)) | |
9 | 8 | reseq2d 5923 | . . 3 ⊢ (𝑥 = 𝑋 → ( I ↾ (Base‘𝑥)) = ( I ↾ (Base‘𝑋))) |
10 | 9 | adantl 482 | . 2 ⊢ ((𝜑 ∧ 𝑥 = 𝑋) → ( I ↾ (Base‘𝑥)) = ( I ↾ (Base‘𝑋))) |
11 | estrcid.x | . 2 ⊢ (𝜑 → 𝑋 ∈ 𝑈) | |
12 | fvexd 6840 | . . 3 ⊢ (𝜑 → (Base‘𝑋) ∈ V) | |
13 | 12 | resiexd 7148 | . 2 ⊢ (𝜑 → ( I ↾ (Base‘𝑋)) ∈ V) |
14 | 7, 10, 11, 13 | fvmptd 6938 | 1 ⊢ (𝜑 → ( 1 ‘𝑋) = ( I ↾ (Base‘𝑋))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1540 ∈ wcel 2105 Vcvv 3441 ↦ cmpt 5175 I cid 5517 ↾ cres 5622 ‘cfv 6479 Basecbs 17009 Catccat 17470 Idccid 17471 ExtStrCatcestrc 17935 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2707 ax-rep 5229 ax-sep 5243 ax-nul 5250 ax-pow 5308 ax-pr 5372 ax-un 7650 ax-cnex 11028 ax-resscn 11029 ax-1cn 11030 ax-icn 11031 ax-addcl 11032 ax-addrcl 11033 ax-mulcl 11034 ax-mulrcl 11035 ax-mulcom 11036 ax-addass 11037 ax-mulass 11038 ax-distr 11039 ax-i2m1 11040 ax-1ne0 11041 ax-1rid 11042 ax-rnegex 11043 ax-rrecex 11044 ax-cnre 11045 ax-pre-lttri 11046 ax-pre-lttrn 11047 ax-pre-ltadd 11048 ax-pre-mulgt0 11049 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3349 df-reu 3350 df-rab 3404 df-v 3443 df-sbc 3728 df-csb 3844 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3917 df-nul 4270 df-if 4474 df-pw 4549 df-sn 4574 df-pr 4576 df-tp 4578 df-op 4580 df-uni 4853 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5176 df-tr 5210 df-id 5518 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5575 df-we 5577 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6238 df-ord 6305 df-on 6306 df-lim 6307 df-suc 6308 df-iota 6431 df-fun 6481 df-fn 6482 df-f 6483 df-f1 6484 df-fo 6485 df-f1o 6486 df-fv 6487 df-riota 7293 df-ov 7340 df-oprab 7341 df-mpo 7342 df-om 7781 df-1st 7899 df-2nd 7900 df-frecs 8167 df-wrecs 8198 df-recs 8272 df-rdg 8311 df-1o 8367 df-er 8569 df-map 8688 df-en 8805 df-dom 8806 df-sdom 8807 df-fin 8808 df-pnf 11112 df-mnf 11113 df-xr 11114 df-ltxr 11115 df-le 11116 df-sub 11308 df-neg 11309 df-nn 12075 df-2 12137 df-3 12138 df-4 12139 df-5 12140 df-6 12141 df-7 12142 df-8 12143 df-9 12144 df-n0 12335 df-z 12421 df-dec 12539 df-uz 12684 df-fz 13341 df-struct 16945 df-slot 16980 df-ndx 16992 df-base 17010 df-hom 17083 df-cco 17084 df-cat 17474 df-cid 17475 df-estrc 17936 |
This theorem is referenced by: funcestrcsetclem7 17960 funcsetcestrclem7 17975 rnghmsubcsetclem1 45893 rngcid 45897 rhmsubcsetclem1 45939 ringcid 45943 |
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