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Mirrors > Home > MPE Home > Th. List > funcsetcestrclem4 | Structured version Visualization version GIF version |
Description: Lemma 4 for funcsetcestrc 17402. (Contributed by AV, 27-Mar-2020.) |
Ref | Expression |
---|---|
funcsetcestrc.s | ⊢ 𝑆 = (SetCat‘𝑈) |
funcsetcestrc.c | ⊢ 𝐶 = (Base‘𝑆) |
funcsetcestrc.f | ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐶 ↦ {〈(Base‘ndx), 𝑥〉})) |
funcsetcestrc.u | ⊢ (𝜑 → 𝑈 ∈ WUni) |
funcsetcestrc.o | ⊢ (𝜑 → ω ∈ 𝑈) |
funcsetcestrc.g | ⊢ (𝜑 → 𝐺 = (𝑥 ∈ 𝐶, 𝑦 ∈ 𝐶 ↦ ( I ↾ (𝑦 ↑m 𝑥)))) |
Ref | Expression |
---|---|
funcsetcestrclem4 | ⊢ (𝜑 → 𝐺 Fn (𝐶 × 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2818 | . . 3 ⊢ (𝑥 ∈ 𝐶, 𝑦 ∈ 𝐶 ↦ ( I ↾ (𝑦 ↑m 𝑥))) = (𝑥 ∈ 𝐶, 𝑦 ∈ 𝐶 ↦ ( I ↾ (𝑦 ↑m 𝑥))) | |
2 | ovex 7178 | . . . 4 ⊢ (𝑦 ↑m 𝑥) ∈ V | |
3 | resiexg 7608 | . . . 4 ⊢ ((𝑦 ↑m 𝑥) ∈ V → ( I ↾ (𝑦 ↑m 𝑥)) ∈ V) | |
4 | 2, 3 | ax-mp 5 | . . 3 ⊢ ( I ↾ (𝑦 ↑m 𝑥)) ∈ V |
5 | 1, 4 | fnmpoi 7757 | . 2 ⊢ (𝑥 ∈ 𝐶, 𝑦 ∈ 𝐶 ↦ ( I ↾ (𝑦 ↑m 𝑥))) Fn (𝐶 × 𝐶) |
6 | funcsetcestrc.g | . . 3 ⊢ (𝜑 → 𝐺 = (𝑥 ∈ 𝐶, 𝑦 ∈ 𝐶 ↦ ( I ↾ (𝑦 ↑m 𝑥)))) | |
7 | 6 | fneq1d 6439 | . 2 ⊢ (𝜑 → (𝐺 Fn (𝐶 × 𝐶) ↔ (𝑥 ∈ 𝐶, 𝑦 ∈ 𝐶 ↦ ( I ↾ (𝑦 ↑m 𝑥))) Fn (𝐶 × 𝐶))) |
8 | 5, 7 | mpbiri 259 | 1 ⊢ (𝜑 → 𝐺 Fn (𝐶 × 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1528 ∈ wcel 2105 Vcvv 3492 {csn 4557 〈cop 4563 ↦ cmpt 5137 I cid 5452 × cxp 5546 ↾ cres 5550 Fn wfn 6343 ‘cfv 6348 (class class class)co 7145 ∈ cmpo 7147 ωcom 7569 ↑m cmap 8395 WUnicwun 10110 ndxcnx 16468 Basecbs 16471 SetCatcsetc 17323 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1787 ax-4 1801 ax-5 1902 ax-6 1961 ax-7 2006 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2151 ax-12 2167 ax-ext 2790 ax-sep 5194 ax-nul 5201 ax-pow 5257 ax-pr 5320 ax-un 7450 |
This theorem depends on definitions: df-bi 208 df-an 397 df-or 842 df-3an 1081 df-tru 1531 df-ex 1772 df-nf 1776 df-sb 2061 df-mo 2615 df-eu 2647 df-clab 2797 df-cleq 2811 df-clel 2890 df-nfc 2960 df-ne 3014 df-ral 3140 df-rex 3141 df-rab 3144 df-v 3494 df-sbc 3770 df-csb 3881 df-dif 3936 df-un 3938 df-in 3940 df-ss 3949 df-nul 4289 df-if 4464 df-pw 4537 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4831 df-iun 4912 df-br 5058 df-opab 5120 df-mpt 5138 df-id 5453 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-fv 6356 df-ov 7148 df-oprab 7149 df-mpo 7150 df-1st 7678 df-2nd 7679 |
This theorem is referenced by: funcsetcestrc 17402 |
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