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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 50131 | . . 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 2881 | 1 ⊢ (𝜑 → 𝑈 ∈ 𝑊) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2146 〈cop 4600 class class class wbr 5114 × cxp 5664 |
| 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-ext 2738 ax-sep 5262 ax-pr 5409 |
| 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 2745 df-cleq 2758 df-clel 2841 df-ral 3083 df-rex 3093 df-rab 3420 df-v 3460 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-br 5115 df-opab 5179 df-xp 5672 |
| This theorem is used by: fuco11 50145 fuco11cl 50146 fuco21 50155 |
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