| Mathbox for Zhi Wang |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > fuco2eld | Structured version Visualization version GIF version | ||
| Description: Equivalence of product functor. (Contributed by Zhi Wang, 29-Sep-2025.) |
| Ref | Expression |
|---|---|
| fuco2eld.w | ⊢ (𝜑 → 𝑊 = (𝑆 × 𝑅)) |
| fuco2eld.u | ⊢ (𝜑 → 𝑈 = 〈〈𝐾, 𝐿〉, 〈𝐹, 𝐺〉〉) |
| fuco2eld.k | ⊢ (𝜑 → 𝐾𝑆𝐿) |
| fuco2eld.f | ⊢ (𝜑 → 𝐹𝑅𝐺) |
| Ref | Expression |
|---|---|
| fuco2eld | ⊢ (𝜑 → 𝑈 ∈ 𝑊) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fuco2eld.k | . . 3 ⊢ (𝜑 → 𝐾𝑆𝐿) | |
| 2 | fuco2eld.f | . . 3 ⊢ (𝜑 → 𝐹𝑅𝐺) | |
| 3 | fuco2el 50246 | . . 3 ⊢ (〈〈𝐾, 𝐿〉, 〈𝐹, 𝐺〉〉 ∈ (𝑆 × 𝑅) ↔ (𝐾𝑆𝐿 ∧ 𝐹𝑅𝐺)) | |
| 4 | 1, 2, 3 | sylanbrc 595 | . 2 ⊢ (𝜑 → 〈〈𝐾, 𝐿〉, 〈𝐹, 𝐺〉〉 ∈ (𝑆 × 𝑅)) |
| 5 | fuco2eld.u | . 2 ⊢ (𝜑 → 𝑈 = 〈〈𝐾, 𝐿〉, 〈𝐹, 𝐺〉〉) | |
| 6 | fuco2eld.w | . 2 ⊢ (𝜑 → 𝑊 = (𝑆 × 𝑅)) | |
| 7 | 4, 5, 6 | 3eltr4d 2877 | 1 ⊢ (𝜑 → 𝑈 ∈ 𝑊) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 〈cop 4593 class class class wbr 5107 × cxp 5657 |
| 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 2147 ax-9 2155 ax-ext 2734 ax-sep 5255 ax-pr 5402 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-br 5108 df-opab 5172 df-xp 5665 |
| This theorem is used by: fuco11 50260 fuco11cl 50261 fuco21 50270 |
| Copyright terms: Public domain | W3C validator |