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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 7223 | . . . 4 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ V) |
| 4 | 1, 3 | eqeltrid 2873 | . . 3 ⊢ (𝜑 → 𝐹 ∈ V) |
| 5 | mptsuppdifd.z | . . 3 ⊢ (𝜑 → 𝑍 ∈ 𝑊) | |
| 6 | suppimacnv 8169 | . . 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 6240 | . 2 ⊢ (◡𝐹 “ (V ∖ {𝑍})) = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ (V ∖ {𝑍})} |
| 9 | 7, 8 | eqtrdi 2820 | 1 ⊢ (𝜑 → (𝐹 supp 𝑍) = {𝑥 ∈ 𝐴 ∣ 𝐵 ∈ (V ∖ {𝑍})}) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1567 ∈ wcel 2149 {crab 3423 Vcvv 3463 ∖ cdif 3910 {csn 4594 ↦ cmpt 5196 ◡ccnv 5661 “ cima 5665 (class class class)co 7411 supp csupp 8155 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5242 ax-sep 5261 ax-nul 5271 ax-pr 5405 ax-un 7733 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 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 4877 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7414 df-oprab 7415 df-mpo 7416 df-supp 8156 |
| This theorem is referenced by: mptsuppd 8182 extmptsuppeq 8183 suppssov1 8192 suppssov2 8193 suppss2 8195 suppssfv 8197 |
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