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| Mirrors > Home > MPE Home > Th. List > fzf | Structured version Visualization version GIF version | ||
| Description: Establish the domain and codomain of the finite integer sequence function. (Contributed by Scott Fenton, 8-Aug-2013.) (Revised by Mario Carneiro, 16-Nov-2013.) |
| Ref | Expression |
|---|---|
| fzf | ⊢ ...:(ℤ × ℤ)⟶𝒫 ℤ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | zex 12499 | . . . 4 ⊢ ℤ ∈ V | |
| 2 | ssrab2 4032 | . . . 4 ⊢ {𝑘 ∈ ℤ ∣ (𝑚 ≤ 𝑘 ∧ 𝑘 ≤ 𝑛)} ⊆ ℤ | |
| 3 | 1, 2 | elpwi2 5280 | . . 3 ⊢ {𝑘 ∈ ℤ ∣ (𝑚 ≤ 𝑘 ∧ 𝑘 ≤ 𝑛)} ∈ 𝒫 ℤ |
| 4 | 3 | rgen2w 3056 | . 2 ⊢ ∀𝑚 ∈ ℤ ∀𝑛 ∈ ℤ {𝑘 ∈ ℤ ∣ (𝑚 ≤ 𝑘 ∧ 𝑘 ≤ 𝑛)} ∈ 𝒫 ℤ |
| 5 | df-fz 13426 | . . 3 ⊢ ... = (𝑚 ∈ ℤ, 𝑛 ∈ ℤ ↦ {𝑘 ∈ ℤ ∣ (𝑚 ≤ 𝑘 ∧ 𝑘 ≤ 𝑛)}) | |
| 6 | 5 | fmpo 8012 | . 2 ⊢ (∀𝑚 ∈ ℤ ∀𝑛 ∈ ℤ {𝑘 ∈ ℤ ∣ (𝑚 ≤ 𝑘 ∧ 𝑘 ≤ 𝑛)} ∈ 𝒫 ℤ ↔ ...:(ℤ × ℤ)⟶𝒫 ℤ) |
| 7 | 4, 6 | mpbi 230 | 1 ⊢ ...:(ℤ × ℤ)⟶𝒫 ℤ |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ wa 395 ∈ wcel 2113 ∀wral 3051 {crab 3399 Vcvv 3440 𝒫 cpw 4554 class class class wbr 5098 × cxp 5622 ⟶wf 6488 ≤ cle 11169 ℤcz 12490 ...cfz 13425 |
| 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 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pr 5377 ax-un 7680 ax-cnex 11084 ax-resscn 11085 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-iun 4948 df-br 5099 df-opab 5161 df-mpt 5180 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-fv 6500 df-ov 7361 df-oprab 7362 df-mpo 7363 df-1st 7933 df-2nd 7934 df-neg 11369 df-z 12491 df-fz 13426 |
| This theorem is referenced by: elfz2 13432 fz0 13457 fzoval 13578 gsumval2a 18612 gsumval3 19838 topnfbey 30546 |
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