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| Mirrors > Home > ILE Home > Th. List > limcrcl | GIF version | ||
| Description: Reverse closure for the limit operator. (Contributed by Mario Carneiro, 28-Dec-2016.) |
| Ref | Expression |
|---|---|
| limcrcl | ⊢ (𝐶 ∈ (𝐹 limℂ 𝐵) → (𝐹:dom 𝐹⟶ℂ ∧ dom 𝐹 ⊆ ℂ ∧ 𝐵 ∈ ℂ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-limced 15070 | . . 3 ⊢ limℂ = (𝑓 ∈ (ℂ ↑pm ℂ), 𝑥 ∈ ℂ ↦ {𝑦 ∈ ℂ ∣ ((𝑓:dom 𝑓⟶ℂ ∧ dom 𝑓 ⊆ ℂ) ∧ (𝑥 ∈ ℂ ∧ ∀𝑒 ∈ ℝ+ ∃𝑑 ∈ ℝ+ ∀𝑧 ∈ dom 𝑓((𝑧 # 𝑥 ∧ (abs‘(𝑧 − 𝑥)) < 𝑑) → (abs‘((𝑓‘𝑧) − 𝑦)) < 𝑒)))}) | |
| 2 | 1 | elmpocl 6140 | . 2 ⊢ (𝐶 ∈ (𝐹 limℂ 𝐵) → (𝐹 ∈ (ℂ ↑pm ℂ) ∧ 𝐵 ∈ ℂ)) |
| 3 | cnex 8048 | . . . . 5 ⊢ ℂ ∈ V | |
| 4 | 3, 3 | elpm2 6766 | . . . 4 ⊢ (𝐹 ∈ (ℂ ↑pm ℂ) ↔ (𝐹:dom 𝐹⟶ℂ ∧ dom 𝐹 ⊆ ℂ)) |
| 5 | 4 | anbi1i 458 | . . 3 ⊢ ((𝐹 ∈ (ℂ ↑pm ℂ) ∧ 𝐵 ∈ ℂ) ↔ ((𝐹:dom 𝐹⟶ℂ ∧ dom 𝐹 ⊆ ℂ) ∧ 𝐵 ∈ ℂ)) |
| 6 | df-3an 982 | . . 3 ⊢ ((𝐹:dom 𝐹⟶ℂ ∧ dom 𝐹 ⊆ ℂ ∧ 𝐵 ∈ ℂ) ↔ ((𝐹:dom 𝐹⟶ℂ ∧ dom 𝐹 ⊆ ℂ) ∧ 𝐵 ∈ ℂ)) | |
| 7 | 5, 6 | bitr4i 187 | . 2 ⊢ ((𝐹 ∈ (ℂ ↑pm ℂ) ∧ 𝐵 ∈ ℂ) ↔ (𝐹:dom 𝐹⟶ℂ ∧ dom 𝐹 ⊆ ℂ ∧ 𝐵 ∈ ℂ)) |
| 8 | 2, 7 | sylib 122 | 1 ⊢ (𝐶 ∈ (𝐹 limℂ 𝐵) → (𝐹:dom 𝐹⟶ℂ ∧ dom 𝐹 ⊆ ℂ ∧ 𝐵 ∈ ℂ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∧ w3a 980 ∈ wcel 2175 ∀wral 2483 ∃wrex 2484 {crab 2487 ⊆ wss 3165 class class class wbr 4043 dom cdm 4674 ⟶wf 5266 ‘cfv 5270 (class class class)co 5943 ↑pm cpm 6735 ℂcc 7922 < clt 8106 − cmin 8242 # cap 8653 ℝ+crp 9774 abscabs 11250 limℂ climc 15068 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1469 ax-7 1470 ax-gen 1471 ax-ie1 1515 ax-ie2 1516 ax-8 1526 ax-10 1527 ax-11 1528 ax-i12 1529 ax-bndl 1531 ax-4 1532 ax-17 1548 ax-i9 1552 ax-ial 1556 ax-i5r 1557 ax-13 2177 ax-14 2178 ax-ext 2186 ax-sep 4161 ax-pow 4217 ax-pr 4252 ax-un 4479 ax-setind 4584 ax-cnex 8015 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1375 df-fal 1378 df-nf 1483 df-sb 1785 df-eu 2056 df-mo 2057 df-clab 2191 df-cleq 2197 df-clel 2200 df-nfc 2336 df-ne 2376 df-ral 2488 df-rex 2489 df-rab 2492 df-v 2773 df-sbc 2998 df-dif 3167 df-un 3169 df-in 3171 df-ss 3178 df-pw 3617 df-sn 3638 df-pr 3639 df-op 3641 df-uni 3850 df-br 4044 df-opab 4105 df-id 4339 df-xp 4680 df-rel 4681 df-cnv 4682 df-co 4683 df-dm 4684 df-rn 4685 df-iota 5231 df-fun 5272 df-fn 5273 df-f 5274 df-fv 5278 df-ov 5946 df-oprab 5947 df-mpo 5948 df-pm 6737 df-limced 15070 |
| This theorem is referenced by: limccl 15073 limcdifap 15076 limcimolemlt 15078 limcresi 15080 limccnpcntop 15089 limccnp2lem 15090 limccnp2cntop 15091 limccoap 15092 |
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