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| Mirrors > Home > MPE Home > Th. List > mptsuppdifd | Structured version Visualization version GIF version | ||
| Description: The support of a function in maps-to notation with a class difference. (Contributed by AV, 28-May-2019.) |
| Ref | Expression |
|---|---|
| mptsuppdifd.f | ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) |
| mptsuppdifd.a | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| mptsuppdifd.z | ⊢ (𝜑 → 𝑍 ∈ 𝑊) |
| Ref | Expression |
|---|---|
| mptsuppdifd | ⊢ (𝜑 → (𝐹 supp 𝑍) = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ (V ∖ {𝑍})}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mptsuppdifd.f | . . . 4 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
| 2 | mptsuppdifd.a | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 3 | 2 | mptexd 7226 | . . . 4 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ V) |
| 4 | 1, 3 | eqeltrid 2874 | . . 3 ⊢ (𝜑 → 𝐹 ∈ V) |
| 5 | mptsuppdifd.z | . . 3 ⊢ (𝜑 → 𝑍 ∈ 𝑊) | |
| 6 | suppimacnv 8173 | . . 3 ⊢ ((𝐹 ∈ V ∧ 𝑍 ∈ 𝑊) → (𝐹 supp 𝑍) = (◡𝐹 “ (V ∖ {𝑍}))) | |
| 7 | 4, 5, 6 | syl2anc 595 | . 2 ⊢ (𝜑 → (𝐹 supp 𝑍) = (◡𝐹 “ (V ∖ {𝑍}))) |
| 8 | 1 | mptpreima 6243 | . 2 ⊢ (◡𝐹 “ (V ∖ {𝑍})) = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ (V ∖ {𝑍})} |
| 9 | 7, 8 | eqtrdi 2821 | 1 ⊢ (𝜑 → (𝐹 supp 𝑍) = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ (V ∖ {𝑍})}) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1568 ∈ wcel 2150 {crab 3423 Vcvv 3462 ∖ cdif 3910 {csn 4594 ↦ cmpt 5197 ◡ccnv 5664 “ cima 5668 (class class class)co 7414 supp csupp 8159 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pr 5408 ax-un 7736 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 df-ral 3087 df-rex 3097 df-reu 3377 df-rab 3424 df-v 3464 df-sbc 3753 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5560 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-ov 7417 df-oprab 7418 df-mpo 7419 df-supp 8160 |
| This theorem is referenced by: mptsuppd 8186 extmptsuppeq 8187 suppssov1 8196 suppssov2 8197 suppss2 8199 suppssfv 8201 |
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