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| Mirrors > Home > MPE Home > Th. List > psrbag | Structured version Visualization version GIF version | ||
| Description: Elementhood in the set of finite bags. (Contributed by Mario Carneiro, 29-Dec-2014.) |
| Ref | Expression |
|---|---|
| psrbag.d | ⊢ 𝐷 = {𝑓 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑓 “ ℕ) ∈ Fin} |
| Ref | Expression |
|---|---|
| psrbag | ⊢ (𝐼 ∈ 𝑉 → (𝐹 ∈ 𝐷 ↔ (𝐹:𝐼⟶ℕ0 ∧ (◡𝐹 “ ℕ) ∈ Fin))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnveq 5812 | . . . . 5 ⊢ (𝑓 = 𝐹 → ◡𝑓 = ◡𝐹) | |
| 2 | 1 | imaeq1d 6007 | . . . 4 ⊢ (𝑓 = 𝐹 → (◡𝑓 “ ℕ) = (◡𝐹 “ ℕ)) |
| 3 | 2 | eleq1d 2816 | . . 3 ⊢ (𝑓 = 𝐹 → ((◡𝑓 “ ℕ) ∈ Fin ↔ (◡𝐹 “ ℕ) ∈ Fin)) |
| 4 | psrbag.d | . . 3 ⊢ 𝐷 = {𝑓 ∈ (ℕ0 ↑m 𝐼) ∣ (◡𝑓 “ ℕ) ∈ Fin} | |
| 5 | 3, 4 | elrab2 3645 | . 2 ⊢ (𝐹 ∈ 𝐷 ↔ (𝐹 ∈ (ℕ0 ↑m 𝐼) ∧ (◡𝐹 “ ℕ) ∈ Fin)) |
| 6 | nn0ex 12387 | . . . 4 ⊢ ℕ0 ∈ V | |
| 7 | elmapg 8763 | . . . 4 ⊢ ((ℕ0 ∈ V ∧ 𝐼 ∈ 𝑉) → (𝐹 ∈ (ℕ0 ↑m 𝐼) ↔ 𝐹:𝐼⟶ℕ0)) | |
| 8 | 6, 7 | mpan 690 | . . 3 ⊢ (𝐼 ∈ 𝑉 → (𝐹 ∈ (ℕ0 ↑m 𝐼) ↔ 𝐹:𝐼⟶ℕ0)) |
| 9 | 8 | anbi1d 631 | . 2 ⊢ (𝐼 ∈ 𝑉 → ((𝐹 ∈ (ℕ0 ↑m 𝐼) ∧ (◡𝐹 “ ℕ) ∈ Fin) ↔ (𝐹:𝐼⟶ℕ0 ∧ (◡𝐹 “ ℕ) ∈ Fin))) |
| 10 | 5, 9 | bitrid 283 | 1 ⊢ (𝐼 ∈ 𝑉 → (𝐹 ∈ 𝐷 ↔ (𝐹:𝐼⟶ℕ0 ∧ (◡𝐹 “ ℕ) ∈ Fin))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1541 ∈ wcel 2111 {crab 3395 Vcvv 3436 ◡ccnv 5613 “ cima 5617 ⟶wf 6477 (class class class)co 7346 ↑m cmap 8750 Fincfn 8869 ℕcn 12125 ℕ0cn0 12381 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5232 ax-nul 5242 ax-pow 5301 ax-pr 5368 ax-un 7668 ax-cnex 11062 ax-1cn 11064 ax-addcl 11066 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3917 df-nul 4281 df-if 4473 df-pw 4549 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-iun 4941 df-br 5090 df-opab 5152 df-mpt 5171 df-tr 5197 df-id 5509 df-eprel 5514 df-po 5522 df-so 5523 df-fr 5567 df-we 5569 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-pred 6248 df-ord 6309 df-on 6310 df-lim 6311 df-suc 6312 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-f1 6486 df-fo 6487 df-f1o 6488 df-fv 6489 df-ov 7349 df-oprab 7350 df-mpo 7351 df-om 7797 df-2nd 7922 df-frecs 8211 df-wrecs 8242 df-recs 8291 df-rdg 8329 df-map 8752 df-nn 12126 df-n0 12382 |
| This theorem is referenced by: psrbagfsupp 21856 snifpsrbag 21857 psrbaglecl 21860 psrbagaddcl 21861 psrbagcon 21862 mplcoe5lem 21974 mplcoe5 21975 mplbas2 21977 psrbag0 21997 psrbagsn 21998 evlslem3 22015 mhpmulcl 22064 psrbagres 42587 evlselvlem 42627 evlselv 42628 |
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