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| 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 50527 | . . 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 2875 | 1 ⊢ (𝜑 → 𝑈 ∈ 𝑊) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 〈cop 4834 class class class wbr 5102 × cxp 5648 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-br 5103 df-opab 5167 df-xp 5656 |
| This theorem is used by: fuco11 50541 fuco11cl 50542 fuco21 50551 |
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