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| Mirrors > Home > MPE Home > Th. List > Mathboxes > natoppf2 | Structured version Visualization version GIF version | ||
| Description: A natural transformation is natural between opposite functors. (Contributed by Zhi Wang, 18-Nov-2025.) |
| Ref | Expression |
|---|---|
| natoppf.o | ⊢ 𝑂 = (oppCat‘𝐶) |
| natoppf.p | ⊢ 𝑃 = (oppCat‘𝐷) |
| natoppf.n | ⊢ 𝑁 = (𝐶 Nat 𝐷) |
| natoppf.m | ⊢ 𝑀 = (𝑂 Nat 𝑃) |
| natoppfb.k | ⊢ (𝜑 → 𝐾 = ( oppFunc ‘𝐹)) |
| natoppfb.l | ⊢ (𝜑 → 𝐿 = ( oppFunc ‘𝐺)) |
| natoppf2.a | ⊢ (𝜑 → 𝐴 ∈ (𝐹𝑁𝐺)) |
| Ref | Expression |
|---|---|
| natoppf2 | ⊢ (𝜑 → 𝐴 ∈ (𝐿𝑀𝐾)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | natoppf.o | . . 3 ⊢ 𝑂 = (oppCat‘𝐶) | |
| 2 | natoppf.p | . . 3 ⊢ 𝑃 = (oppCat‘𝐷) | |
| 3 | natoppf.n | . . 3 ⊢ 𝑁 = (𝐶 Nat 𝐷) | |
| 4 | natoppf.m | . . 3 ⊢ 𝑀 = (𝑂 Nat 𝑃) | |
| 5 | natoppf2.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ (𝐹𝑁𝐺)) | |
| 6 | 3, 5 | nat1st2nd 18033 | . . 3 ⊢ (𝜑 → 𝐴 ∈ (〈(1st ‘𝐹), (2nd ‘𝐹)〉𝑁〈(1st ‘𝐺), (2nd ‘𝐺)〉)) |
| 7 | 1, 2, 3, 4, 6 | natoppf 50064 | . 2 ⊢ (𝜑 → 𝐴 ∈ (〈(1st ‘𝐺), tpos (2nd ‘𝐺)〉𝑀〈(1st ‘𝐹), tpos (2nd ‘𝐹)〉)) |
| 8 | natoppfb.l | . . . 4 ⊢ (𝜑 → 𝐿 = ( oppFunc ‘𝐺)) | |
| 9 | 3 | natrcl 18032 | . . . . . 6 ⊢ (𝐴 ∈ (𝐹𝑁𝐺) → (𝐹 ∈ (𝐶 Func 𝐷) ∧ 𝐺 ∈ (𝐶 Func 𝐷))) |
| 10 | 9 | simprd 501 | . . . . 5 ⊢ (𝐴 ∈ (𝐹𝑁𝐺) → 𝐺 ∈ (𝐶 Func 𝐷)) |
| 11 | oppfval2 49972 | . . . . 5 ⊢ (𝐺 ∈ (𝐶 Func 𝐷) → ( oppFunc ‘𝐺) = 〈(1st ‘𝐺), tpos (2nd ‘𝐺)〉) | |
| 12 | 5, 10, 11 | 3syl 19 | . . . 4 ⊢ (𝜑 → ( oppFunc ‘𝐺) = 〈(1st ‘𝐺), tpos (2nd ‘𝐺)〉) |
| 13 | 8, 12 | eqtrd 2800 | . . 3 ⊢ (𝜑 → 𝐿 = 〈(1st ‘𝐺), tpos (2nd ‘𝐺)〉) |
| 14 | natoppfb.k | . . . 4 ⊢ (𝜑 → 𝐾 = ( oppFunc ‘𝐹)) | |
| 15 | 9 | simpld 500 | . . . . 5 ⊢ (𝐴 ∈ (𝐹𝑁𝐺) → 𝐹 ∈ (𝐶 Func 𝐷)) |
| 16 | oppfval2 49972 | . . . . 5 ⊢ (𝐹 ∈ (𝐶 Func 𝐷) → ( oppFunc ‘𝐹) = 〈(1st ‘𝐹), tpos (2nd ‘𝐹)〉) | |
| 17 | 5, 15, 16 | 3syl 19 | . . . 4 ⊢ (𝜑 → ( oppFunc ‘𝐹) = 〈(1st ‘𝐹), tpos (2nd ‘𝐹)〉) |
| 18 | 14, 17 | eqtrd 2800 | . . 3 ⊢ (𝜑 → 𝐾 = 〈(1st ‘𝐹), tpos (2nd ‘𝐹)〉) |
| 19 | 13, 18 | oveq12d 7437 | . 2 ⊢ (𝜑 → (𝐿𝑀𝐾) = (〈(1st ‘𝐺), tpos (2nd ‘𝐺)〉𝑀〈(1st ‘𝐹), tpos (2nd ‘𝐹)〉)) |
| 20 | 7, 19 | eleqtrrd 2868 | 1 ⊢ (𝜑 → 𝐴 ∈ (𝐿𝑀𝐾)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2146 〈cop 4597 ‘cfv 6540 (class class class)co 7419 1st c1st 7990 2nd c2nd 7991 tpos ctpos 8227 oppCatcoppc 17789 Func cfunc 17933 Nat cnat 18023 oppFunc coppf 49957 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-cnex 11171 ax-resscn 11172 ax-1cn 11173 ax-icn 11174 ax-addcl 11175 ax-addrcl 11176 ax-mulcl 11177 ax-mulrcl 11178 ax-mulcom 11179 ax-addass 11180 ax-mulass 11181 ax-distr 11182 ax-i2m1 11183 ax-1ne0 11184 ax-1rid 11185 ax-rnegex 11186 ax-rrecex 11187 ax-cnre 11188 ax-pre-lttri 11189 ax-pre-lttrn 11190 ax-pre-ltadd 11191 ax-pre-mulgt0 11192 |
| 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 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-om 7869 df-1st 7992 df-2nd 7993 df-tpos 8228 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-er 8700 df-map 8832 df-ixp 8902 df-en 8950 df-dom 8951 df-sdom 8952 df-pnf 11260 df-mnf 11261 df-xr 11262 df-ltxr 11263 df-le 11264 df-sub 11458 df-neg 11459 df-nn 12249 df-2 12318 df-3 12319 df-4 12320 df-5 12321 df-6 12322 df-7 12323 df-8 12324 df-9 12325 df-n0 12520 df-z 12607 df-dec 12728 df-sets 17246 df-slot 17264 df-ndx 17276 df-base 17292 df-hom 17356 df-cco 17357 df-cat 17746 df-cid 17747 df-oppc 17790 df-func 17937 df-nat 18025 df-oppf 49958 |
| This theorem is used by: natoppfb 50066 |
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