| Step | Hyp | Ref
 | Expression | 
| 1 |   | upfval2.f | 
. 2
⊢ (𝜑 → 𝐹 ∈ (𝐷 Func 𝐸)) | 
| 2 |   | upfval2.w | 
. 2
⊢ (𝜑 → 𝑊 ∈ 𝐶) | 
| 3 |   | anass 468 | 
. . . 4
⊢ (((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)) ↔ (𝑥 ∈ 𝐵 ∧ (𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥)) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)))) | 
| 4 | 3 | opabbii 5192 | 
. . 3
⊢
{〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))} = {〈𝑥, 𝑚〉 ∣ (𝑥 ∈ 𝐵 ∧ (𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥)) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)))} | 
| 5 |   | upfval.b | 
. . . . . 6
⊢ 𝐵 = (Base‘𝐷) | 
| 6 | 5 | fvexi 6901 | 
. . . . 5
⊢ 𝐵 ∈ V | 
| 7 | 6 | a1i 11 | 
. . . 4
⊢ (𝜑 → 𝐵 ∈ V) | 
| 8 |   | simprl 770 | 
. . . . 5
⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥)) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) → 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) | 
| 9 |   | ovexd 7449 | 
. . . . 5
⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → (𝑊𝐽((1st ‘𝐹)‘𝑥)) ∈ V) | 
| 10 | 8, 9 | abexd 5307 | 
. . . 4
⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → {𝑚 ∣ (𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥)) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))} ∈ V) | 
| 11 | 7, 10 | opabex3d 7973 | 
. . 3
⊢ (𝜑 → {〈𝑥, 𝑚〉 ∣ (𝑥 ∈ 𝐵 ∧ (𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥)) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)))} ∈ V) | 
| 12 | 4, 11 | eqeltrid 2837 | 
. 2
⊢ (𝜑 → {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))} ∈ V) | 
| 13 |   | fveq2 6887 | 
. . . . . . . . 9
⊢ (𝑓 = 𝐹 → (1st ‘𝑓) = (1st ‘𝐹)) | 
| 14 | 13 | fveq1d 6889 | 
. . . . . . . 8
⊢ (𝑓 = 𝐹 → ((1st ‘𝑓)‘𝑥) = ((1st ‘𝐹)‘𝑥)) | 
| 15 | 14 | oveq2d 7430 | 
. . . . . . 7
⊢ (𝑓 = 𝐹 → (𝑤𝐽((1st ‘𝑓)‘𝑥)) = (𝑤𝐽((1st ‘𝐹)‘𝑥))) | 
| 16 | 15 | eleq2d 2819 | 
. . . . . 6
⊢ (𝑓 = 𝐹 → (𝑚 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑥)) ↔ 𝑚 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑥)))) | 
| 17 | 16 | anbi2d 630 | 
. . . . 5
⊢ (𝑓 = 𝐹 → ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑥))) ↔ (𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑥))))) | 
| 18 | 13 | fveq1d 6889 | 
. . . . . . . 8
⊢ (𝑓 = 𝐹 → ((1st ‘𝑓)‘𝑦) = ((1st ‘𝐹)‘𝑦)) | 
| 19 | 18 | oveq2d 7430 | 
. . . . . . 7
⊢ (𝑓 = 𝐹 → (𝑤𝐽((1st ‘𝑓)‘𝑦)) = (𝑤𝐽((1st ‘𝐹)‘𝑦))) | 
| 20 | 14 | opeq2d 4862 | 
. . . . . . . . . . 11
⊢ (𝑓 = 𝐹 → 〈𝑤, ((1st ‘𝑓)‘𝑥)〉 = 〈𝑤, ((1st ‘𝐹)‘𝑥)〉) | 
| 21 | 20, 18 | oveq12d 7432 | 
. . . . . . . . . 10
⊢ (𝑓 = 𝐹 → (〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦)) = (〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))) | 
| 22 |   | fveq2 6887 | 
. . . . . . . . . . . 12
⊢ (𝑓 = 𝐹 → (2nd ‘𝑓) = (2nd ‘𝐹)) | 
| 23 | 22 | oveqd 7431 | 
. . . . . . . . . . 11
⊢ (𝑓 = 𝐹 → (𝑥(2nd ‘𝑓)𝑦) = (𝑥(2nd ‘𝐹)𝑦)) | 
| 24 | 23 | fveq1d 6889 | 
. . . . . . . . . 10
⊢ (𝑓 = 𝐹 → ((𝑥(2nd ‘𝑓)𝑦)‘𝑘) = ((𝑥(2nd ‘𝐹)𝑦)‘𝑘)) | 
| 25 |   | eqidd 2735 | 
. . . . . . . . . 10
⊢ (𝑓 = 𝐹 → 𝑚 = 𝑚) | 
| 26 | 21, 24, 25 | oveq123d 7435 | 
. . . . . . . . 9
⊢ (𝑓 = 𝐹 → (((𝑥(2nd ‘𝑓)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦))𝑚) = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)) | 
| 27 | 26 | eqeq2d 2745 | 
. . . . . . . 8
⊢ (𝑓 = 𝐹 → (𝑔 = (((𝑥(2nd ‘𝑓)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦))𝑚) ↔ 𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) | 
| 28 | 27 | reubidv 3382 | 
. . . . . . 7
⊢ (𝑓 = 𝐹 → (∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝑓)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦))𝑚) ↔ ∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) | 
| 29 | 19, 28 | raleqbidv 3330 | 
. . . . . 6
⊢ (𝑓 = 𝐹 → (∀𝑔 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝑓)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦))𝑚) ↔ ∀𝑔 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) | 
| 30 | 29 | ralbidv 3165 | 
. . . . 5
⊢ (𝑓 = 𝐹 → (∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝑓)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦))𝑚) ↔ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) | 
| 31 | 17, 30 | anbi12d 632 | 
. . . 4
⊢ (𝑓 = 𝐹 → (((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝑓)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦))𝑚)) ↔ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)))) | 
| 32 | 31 | opabbidv 5191 | 
. . 3
⊢ (𝑓 = 𝐹 → {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝑓)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦))𝑚))} = {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))}) | 
| 33 |   | oveq1 7421 | 
. . . . . . 7
⊢ (𝑤 = 𝑊 → (𝑤𝐽((1st ‘𝐹)‘𝑥)) = (𝑊𝐽((1st ‘𝐹)‘𝑥))) | 
| 34 | 33 | eleq2d 2819 | 
. . . . . 6
⊢ (𝑤 = 𝑊 → (𝑚 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑥)) ↔ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥)))) | 
| 35 | 34 | anbi2d 630 | 
. . . . 5
⊢ (𝑤 = 𝑊 → ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑥))) ↔ (𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))))) | 
| 36 |   | oveq1 7421 | 
. . . . . . 7
⊢ (𝑤 = 𝑊 → (𝑤𝐽((1st ‘𝐹)‘𝑦)) = (𝑊𝐽((1st ‘𝐹)‘𝑦))) | 
| 37 |   | opeq1 4855 | 
. . . . . . . . . . 11
⊢ (𝑤 = 𝑊 → 〈𝑤, ((1st ‘𝐹)‘𝑥)〉 = 〈𝑊, ((1st ‘𝐹)‘𝑥)〉) | 
| 38 | 37 | oveq1d 7429 | 
. . . . . . . . . 10
⊢ (𝑤 = 𝑊 → (〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦)) = (〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))) | 
| 39 | 38 | oveqd 7431 | 
. . . . . . . . 9
⊢ (𝑤 = 𝑊 → (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚) = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)) | 
| 40 | 39 | eqeq2d 2745 | 
. . . . . . . 8
⊢ (𝑤 = 𝑊 → (𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚) ↔ 𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) | 
| 41 | 40 | reubidv 3382 | 
. . . . . . 7
⊢ (𝑤 = 𝑊 → (∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚) ↔ ∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) | 
| 42 | 36, 41 | raleqbidv 3330 | 
. . . . . 6
⊢ (𝑤 = 𝑊 → (∀𝑔 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚) ↔ ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) | 
| 43 | 42 | ralbidv 3165 | 
. . . . 5
⊢ (𝑤 = 𝑊 → (∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚) ↔ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))) | 
| 44 | 35, 43 | anbi12d 632 | 
. . . 4
⊢ (𝑤 = 𝑊 → (((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)) ↔ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚)))) | 
| 45 | 44 | opabbidv 5191 | 
. . 3
⊢ (𝑤 = 𝑊 → {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))} = {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))}) | 
| 46 |   | upfval.c | 
. . . 4
⊢ 𝐶 = (Base‘𝐸) | 
| 47 |   | upfval.h | 
. . . 4
⊢ 𝐻 = (Hom ‘𝐷) | 
| 48 |   | upfval.j | 
. . . 4
⊢ 𝐽 = (Hom ‘𝐸) | 
| 49 |   | upfval.o | 
. . . 4
⊢ 𝑂 = (comp‘𝐸) | 
| 50 | 5, 46, 47, 48, 49 | upfval 48888 | 
. . 3
⊢ (𝐷UP𝐸) = (𝑓 ∈ (𝐷 Func 𝐸), 𝑤 ∈ 𝐶 ↦ {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑤𝐽((1st ‘𝑓)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝑓)𝑦)‘𝑘)(〈𝑤, ((1st ‘𝑓)‘𝑥)〉𝑂((1st ‘𝑓)‘𝑦))𝑚))}) | 
| 51 | 32, 45, 50 | ovmpog 7575 | 
. 2
⊢ ((𝐹 ∈ (𝐷 Func 𝐸) ∧ 𝑊 ∈ 𝐶 ∧ {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))} ∈ V) → (𝐹(𝐷UP𝐸)𝑊) = {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))}) | 
| 52 | 1, 2, 12, 51 | syl3anc 1372 | 
1
⊢ (𝜑 → (𝐹(𝐷UP𝐸)𝑊) = {〈𝑥, 𝑚〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑚 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑥))) ∧ ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ (𝑊𝐽((1st ‘𝐹)‘𝑦))∃!𝑘 ∈ (𝑥𝐻𝑦)𝑔 = (((𝑥(2nd ‘𝐹)𝑦)‘𝑘)(〈𝑊, ((1st ‘𝐹)‘𝑥)〉𝑂((1st ‘𝐹)‘𝑦))𝑚))}) |