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| Mirrors > Home > MPE Home > Th. List > Mathboxes > imasubclem1 | Structured version Visualization version GIF version | ||
| Description: Lemma for imasubc 49957. (Contributed by Zhi Wang, 6-Nov-2025.) |
| Ref | Expression |
|---|---|
| imasubclem1.f | ⊢ (𝜑 → 𝐹 ∈ 𝑉) |
| imasubclem1.g | ⊢ (𝜑 → 𝐺 ∈ 𝑊) |
| Ref | Expression |
|---|---|
| imasubclem1 | ⊢ (𝜑 → ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imasubclem1.f | . . . . 5 ⊢ (𝜑 → 𝐹 ∈ 𝑉) | |
| 2 | cnvexg 7917 | . . . . 5 ⊢ (𝐹 ∈ 𝑉 → ◡𝐹 ∈ V) | |
| 3 | 1, 2 | syl 18 | . . . 4 ⊢ (𝜑 → ◡𝐹 ∈ V) |
| 4 | 3 | imaexd 7909 | . . 3 ⊢ (𝜑 → (◡𝐹 “ 𝐴) ∈ V) |
| 5 | imasubclem1.g | . . . . 5 ⊢ (𝜑 → 𝐺 ∈ 𝑊) | |
| 6 | cnvexg 7917 | . . . . 5 ⊢ (𝐺 ∈ 𝑊 → ◡𝐺 ∈ V) | |
| 7 | 5, 6 | syl 18 | . . . 4 ⊢ (𝜑 → ◡𝐺 ∈ V) |
| 8 | 7 | imaexd 7909 | . . 3 ⊢ (𝜑 → (◡𝐺 “ 𝐵) ∈ V) |
| 9 | 4, 8 | xpexd 7746 | . 2 ⊢ (𝜑 → ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵)) ∈ V) |
| 10 | fvex 6894 | . . . 4 ⊢ (𝐻‘𝐶) ∈ V | |
| 11 | 10 | imaex 7907 | . . 3 ⊢ ((𝐻‘𝐶) “ 𝐷) ∈ V |
| 12 | 11 | rgenw 3083 | . 2 ⊢ ∀𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V |
| 13 | iunexg 7956 | . 2 ⊢ ((((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵)) ∈ V ∧ ∀𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V) → ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V) | |
| 14 | 9, 12, 13 | sylancl 597 | 1 ⊢ (𝜑 → ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2143 ∀wral 3079 Vcvv 3455 ∪ ciun 4956 × cxp 5659 ◡ccnv 5660 “ cima 5664 ‘cfv 6536 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-11 2192 ax-ext 2735 ax-rep 5238 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-sb 2097 df-mo 2567 df-clab 2742 df-cleq 2755 df-clel 2838 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-xp 5667 df-rel 5668 df-cnv 5669 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fv 6544 |
| This theorem is used by: imasubclem2 49911 imasubclem3 49912 |
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