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| Mirrors > Home > MPE Home > Th. List > 0pledm | Structured version Visualization version GIF version | ||
| Description: Adjust the domain of the left argument to match the right, which works better in our theorems. (Contributed by Mario Carneiro, 28-Jul-2014.) |
| Ref | Expression |
|---|---|
| 0pledm.1 | ⊢ (𝜑 → 𝐴 ⊆ ℂ) |
| 0pledm.2 | ⊢ (𝜑 → 𝐹 Fn 𝐴) |
| Ref | Expression |
|---|---|
| 0pledm | ⊢ (𝜑 → (0𝑝 ∘r ≤ 𝐹 ↔ (𝐴 × {0}) ∘r ≤ 𝐹)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0pledm.1 | . . . 4 ⊢ (𝜑 → 𝐴 ⊆ ℂ) | |
| 2 | sseqin2 4154 | . . . 4 ⊢ (𝐴 ⊆ ℂ ↔ (ℂ ∩ 𝐴) = 𝐴) | |
| 3 | 1, 2 | sylib 220 | . . 3 ⊢ (𝜑 → (ℂ ∩ 𝐴) = 𝐴) |
| 4 | 3 | raleqdv 3299 | . 2 ⊢ (𝜑 → (∀𝑥 ∈ (ℂ ∩ 𝐴)0 ≤ (𝐹‘𝑥) ↔ ∀𝑥 ∈ 𝐴 0 ≤ (𝐹‘𝑥))) |
| 5 | 0cn 11132 | . . . . . 6 ⊢ 0 ∈ ℂ | |
| 6 | fnconstg 6718 | . . . . . 6 ⊢ (0 ∈ ℂ → (ℂ × {0}) Fn ℂ) | |
| 7 | 5, 6 | ax-mp 5 | . . . . 5 ⊢ (ℂ × {0}) Fn ℂ |
| 8 | df-0p 25658 | . . . . . 6 ⊢ 0𝑝 = (ℂ × {0}) | |
| 9 | 8 | fneq1i 6585 | . . . . 5 ⊢ (0𝑝 Fn ℂ ↔ (ℂ × {0}) Fn ℂ) |
| 10 | 7, 9 | mpbir 233 | . . . 4 ⊢ 0𝑝 Fn ℂ |
| 11 | 10 | a1i 11 | . . 3 ⊢ (𝜑 → 0𝑝 Fn ℂ) |
| 12 | 0pledm.2 | . . 3 ⊢ (𝜑 → 𝐹 Fn 𝐴) | |
| 13 | cnex 11115 | . . . 4 ⊢ ℂ ∈ V | |
| 14 | 13 | a1i 11 | . . 3 ⊢ (𝜑 → ℂ ∈ V) |
| 15 | ssexg 5253 | . . . 4 ⊢ ((𝐴 ⊆ ℂ ∧ ℂ ∈ V) → 𝐴 ∈ V) | |
| 16 | 1, 13, 15 | sylancl 593 | . . 3 ⊢ (𝜑 → 𝐴 ∈ V) |
| 17 | eqid 2741 | . . 3 ⊢ (ℂ ∩ 𝐴) = (ℂ ∩ 𝐴) | |
| 18 | 0pval 25659 | . . . 4 ⊢ (𝑥 ∈ ℂ → (0𝑝‘𝑥) = 0) | |
| 19 | 18 | adantl 483 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ ℂ) → (0𝑝‘𝑥) = 0) |
| 20 | eqidd 2742 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝐹‘𝑥) = (𝐹‘𝑥)) | |
| 21 | 11, 12, 14, 16, 17, 19, 20 | ofrfval 7633 | . 2 ⊢ (𝜑 → (0𝑝 ∘r ≤ 𝐹 ↔ ∀𝑥 ∈ (ℂ ∩ 𝐴)0 ≤ (𝐹‘𝑥))) |
| 22 | fnconstg 6718 | . . . . 5 ⊢ (0 ∈ ℂ → (𝐴 × {0}) Fn 𝐴) | |
| 23 | 5, 22 | ax-mp 5 | . . . 4 ⊢ (𝐴 × {0}) Fn 𝐴 |
| 24 | 23 | a1i 11 | . . 3 ⊢ (𝜑 → (𝐴 × {0}) Fn 𝐴) |
| 25 | inidm 4157 | . . 3 ⊢ (𝐴 ∩ 𝐴) = 𝐴 | |
| 26 | c0ex 11134 | . . . . 5 ⊢ 0 ∈ V | |
| 27 | 26 | fvconst2 7151 | . . . 4 ⊢ (𝑥 ∈ 𝐴 → ((𝐴 × {0})‘𝑥) = 0) |
| 28 | 27 | adantl 483 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → ((𝐴 × {0})‘𝑥) = 0) |
| 29 | 24, 12, 16, 16, 25, 28, 20 | ofrfval 7633 | . 2 ⊢ (𝜑 → ((𝐴 × {0}) ∘r ≤ 𝐹 ↔ ∀𝑥 ∈ 𝐴 0 ≤ (𝐹‘𝑥))) |
| 30 | 4, 21, 29 | 3bitr4d 313 | 1 ⊢ (𝜑 → (0𝑝 ∘r ≤ 𝐹 ↔ (𝐴 × {0}) ∘r ≤ 𝐹)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 397 = wceq 1548 ∈ wcel 2121 ∀wral 3055 Vcvv 3433 ∩ cin 3883 ⊆ wss 3884 {csn 4557 class class class wbr 5074 × cxp 5618 Fn wfn 6483 ‘cfv 6488 ∘r cofr 7622 ℂcc 11032 0cc0 11034 ≤ cle 11176 0𝑝c0p 25657 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pr 5364 ax-cnex 11090 ax-1cn 11092 ax-icn 11093 ax-addcl 11094 ax-mulcl 11096 ax-i2m1 11102 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-ral 3056 df-rex 3066 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3725 df-csb 3833 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-nul 4264 df-if 4457 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-id 5515 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-ofr 7624 df-0p 25658 |
| This theorem is referenced by: xrge0f 25719 itg20 25725 itg2const 25728 i1fibl 25796 itgitg1 25797 ftc1anclem5 38077 ftc1anclem7 38079 |
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