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| Mirrors > Home > MPE Home > Th. List > oppchomfval | Structured version Visualization version GIF version | ||
| Description: Hom-sets of the opposite category. (Contributed by Mario Carneiro, 2-Jan-2017.) (Proof shortened by AV, 14-Oct-2024.) |
| Ref | Expression |
|---|---|
| oppchom.h | ⊢ 𝐻 = (Hom ‘𝐶) |
| oppchom.o | ⊢ 𝑂 = (oppCat‘𝐶) |
| Ref | Expression |
|---|---|
| oppchomfval | ⊢ tpos 𝐻 = (Hom ‘𝑂) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | homid 17432 | . . . 4 ⊢ Hom = Slot (Hom ‘ndx) | |
| 2 | slotsbhcdif 17435 | . . . . 5 ⊢ ((Base‘ndx) ≠ (Hom ‘ndx) ∧ (Base‘ndx) ≠ (comp‘ndx) ∧ (Hom ‘ndx) ≠ (comp‘ndx)) | |
| 3 | 2 | simp3i 1153 | . . . 4 ⊢ (Hom ‘ndx) ≠ (comp‘ndx) |
| 4 | 1, 3 | setsnid 17235 | . . 3 ⊢ (Hom ‘(𝐶 sSet 〈(Hom ‘ndx), tpos 𝐻〉)) = (Hom ‘((𝐶 sSet 〈(Hom ‘ndx), tpos 𝐻〉) sSet 〈(comp‘ndx), (𝑢 ∈ ((Base‘𝐶) × (Base‘𝐶)), 𝑧 ∈ (Base‘𝐶) ↦ tpos (〈𝑧, (2nd ‘𝑢)〉(comp‘𝐶)(1st ‘𝑢)))〉)) |
| 5 | oppchom.h | . . . . . 6 ⊢ 𝐻 = (Hom ‘𝐶) | |
| 6 | 5 | fvexi 6876 | . . . . 5 ⊢ 𝐻 ∈ V |
| 7 | 6 | tposex 8234 | . . . 4 ⊢ tpos 𝐻 ∈ V |
| 8 | 1 | setsid 17234 | . . . 4 ⊢ ((𝐶 ∈ V ∧ tpos 𝐻 ∈ V) → tpos 𝐻 = (Hom ‘(𝐶 sSet 〈(Hom ‘ndx), tpos 𝐻〉))) |
| 9 | 7, 8 | mpan2 701 | . . 3 ⊢ (𝐶 ∈ V → tpos 𝐻 = (Hom ‘(𝐶 sSet 〈(Hom ‘ndx), tpos 𝐻〉))) |
| 10 | eqid 2761 | . . . . 5 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 11 | eqid 2761 | . . . . 5 ⊢ (comp‘𝐶) = (comp‘𝐶) | |
| 12 | oppchom.o | . . . . 5 ⊢ 𝑂 = (oppCat‘𝐶) | |
| 13 | 10, 5, 11, 12 | oppcval 17736 | . . . 4 ⊢ (𝐶 ∈ V → 𝑂 = ((𝐶 sSet 〈(Hom ‘ndx), tpos 𝐻〉) sSet 〈(comp‘ndx), (𝑢 ∈ ((Base‘𝐶) × (Base‘𝐶)), 𝑧 ∈ (Base‘𝐶) ↦ tpos (〈𝑧, (2nd ‘𝑢)〉(comp‘𝐶)(1st ‘𝑢)))〉)) |
| 14 | 13 | fveq2d 6866 | . . 3 ⊢ (𝐶 ∈ V → (Hom ‘𝑂) = (Hom ‘((𝐶 sSet 〈(Hom ‘ndx), tpos 𝐻〉) sSet 〈(comp‘ndx), (𝑢 ∈ ((Base‘𝐶) × (Base‘𝐶)), 𝑧 ∈ (Base‘𝐶) ↦ tpos (〈𝑧, (2nd ‘𝑢)〉(comp‘𝐶)(1st ‘𝑢)))〉))) |
| 15 | 4, 9, 14 | 3eqtr4a 2822 | . 2 ⊢ (𝐶 ∈ V → tpos 𝐻 = (Hom ‘𝑂)) |
| 16 | tpos0 8230 | . . 3 ⊢ tpos ∅ = ∅ | |
| 17 | fvprc 6854 | . . . . 5 ⊢ (¬ 𝐶 ∈ V → (Hom ‘𝐶) = ∅) | |
| 18 | 5, 17 | eqtrid 2808 | . . . 4 ⊢ (¬ 𝐶 ∈ V → 𝐻 = ∅) |
| 19 | 18 | tposeqd 8203 | . . 3 ⊢ (¬ 𝐶 ∈ V → tpos 𝐻 = tpos ∅) |
| 20 | fvprc 6854 | . . . . . 6 ⊢ (¬ 𝐶 ∈ V → (oppCat‘𝐶) = ∅) | |
| 21 | 12, 20 | eqtrid 2808 | . . . . 5 ⊢ (¬ 𝐶 ∈ V → 𝑂 = ∅) |
| 22 | 21 | fveq2d 6866 | . . . 4 ⊢ (¬ 𝐶 ∈ V → (Hom ‘𝑂) = (Hom ‘∅)) |
| 23 | 1 | str0 17216 | . . . 4 ⊢ ∅ = (Hom ‘∅) |
| 24 | 22, 23 | eqtr4di 2814 | . . 3 ⊢ (¬ 𝐶 ∈ V → (Hom ‘𝑂) = ∅) |
| 25 | 16, 19, 24 | 3eqtr4a 2822 | . 2 ⊢ (¬ 𝐶 ∈ V → tpos 𝐻 = (Hom ‘𝑂)) |
| 26 | 15, 25 | pm2.61i 183 | 1 ⊢ tpos 𝐻 = (Hom ‘𝑂) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 Vcvv 3453 ∅c0 4283 〈cop 4585 × cxp 5641 ‘cfv 6516 (class class class)co 7391 ∈ cmpo 7393 1st c1st 7963 2nd c2nd 7964 tpos ctpos 8199 sSet csts 17190 ndxcnx 17220 Basecbs 17236 Hom chom 17288 compcco 17289 oppCatcoppc 17734 |
| 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 7713 ax-cnex 11123 ax-resscn 11124 ax-1cn 11125 ax-icn 11126 ax-addcl 11127 ax-addrcl 11128 ax-mulcl 11129 ax-mulrcl 11130 ax-mulcom 11131 ax-addass 11132 ax-mulass 11133 ax-distr 11134 ax-i2m1 11135 ax-1ne0 11136 ax-1rid 11137 ax-rnegex 11138 ax-rrecex 11139 ax-cnre 11140 ax-pre-lttri 11141 ax-pre-lttrn 11142 ax-pre-ltadd 11143 ax-pre-mulgt0 11144 |
| 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 6283 df-ord 6344 df-on 6345 df-lim 6346 df-suc 6347 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-riota 7348 df-ov 7394 df-oprab 7395 df-mpo 7396 df-om 7842 df-2nd 7966 df-tpos 8200 df-frecs 8256 df-wrecs 8287 df-recs 8336 df-rdg 8375 df-er 8672 df-en 8922 df-dom 8923 df-sdom 8924 df-pnf 11212 df-mnf 11213 df-xr 11214 df-ltxr 11215 df-le 11216 df-sub 11410 df-neg 11411 df-nn 12205 df-2 12274 df-3 12275 df-4 12276 df-5 12277 df-6 12278 df-7 12279 df-8 12280 df-9 12281 df-n0 12476 df-z 12563 df-dec 12683 df-sets 17191 df-slot 17209 df-ndx 17221 df-base 17237 df-hom 17301 df-cco 17302 df-oppc 17735 |
| This theorem is referenced by: oppchom 17738 |
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