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Mirrors > Home > MPE Home > Th. List > hashfz | Structured version Visualization version GIF version |
Description: Value of the numeric cardinality of a nonempty integer range. (Contributed by Stefan O'Rear, 12-Sep-2014.) (Proof shortened by Mario Carneiro, 15-Apr-2015.) |
Ref | Expression |
---|---|
hashfz | ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (♯‘(𝐴...𝐵)) = ((𝐵 − 𝐴) + 1)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzel2 12863 | . . . . 5 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ∈ ℤ) | |
2 | eluzelz 12868 | . . . . 5 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℤ) | |
3 | 1z 12628 | . . . . . 6 ⊢ 1 ∈ ℤ | |
4 | zsubcl 12640 | . . . . . 6 ⊢ ((1 ∈ ℤ ∧ 𝐴 ∈ ℤ) → (1 − 𝐴) ∈ ℤ) | |
5 | 3, 1, 4 | sylancr 585 | . . . . 5 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (1 − 𝐴) ∈ ℤ) |
6 | fzen 13556 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ (1 − 𝐴) ∈ ℤ) → (𝐴...𝐵) ≈ ((𝐴 + (1 − 𝐴))...(𝐵 + (1 − 𝐴)))) | |
7 | 1, 2, 5, 6 | syl3anc 1368 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (𝐴...𝐵) ≈ ((𝐴 + (1 − 𝐴))...(𝐵 + (1 − 𝐴)))) |
8 | 1 | zcnd 12703 | . . . . . 6 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ∈ ℂ) |
9 | ax-1cn 11202 | . . . . . 6 ⊢ 1 ∈ ℂ | |
10 | pncan3 11504 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 1 ∈ ℂ) → (𝐴 + (1 − 𝐴)) = 1) | |
11 | 8, 9, 10 | sylancl 584 | . . . . 5 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (𝐴 + (1 − 𝐴)) = 1) |
12 | 1cnd 11245 | . . . . . 6 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 1 ∈ ℂ) | |
13 | 2 | zcnd 12703 | . . . . . . 7 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℂ) |
14 | 13, 8 | subcld 11607 | . . . . . 6 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (𝐵 − 𝐴) ∈ ℂ) |
15 | 13, 12, 8 | addsub12d 11630 | . . . . . 6 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (𝐵 + (1 − 𝐴)) = (1 + (𝐵 − 𝐴))) |
16 | 12, 14, 15 | comraddd 11464 | . . . . 5 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (𝐵 + (1 − 𝐴)) = ((𝐵 − 𝐴) + 1)) |
17 | 11, 16 | oveq12d 7442 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → ((𝐴 + (1 − 𝐴))...(𝐵 + (1 − 𝐴))) = (1...((𝐵 − 𝐴) + 1))) |
18 | 7, 17 | breqtrd 5176 | . . 3 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (𝐴...𝐵) ≈ (1...((𝐵 − 𝐴) + 1))) |
19 | hasheni 14345 | . . 3 ⊢ ((𝐴...𝐵) ≈ (1...((𝐵 − 𝐴) + 1)) → (♯‘(𝐴...𝐵)) = (♯‘(1...((𝐵 − 𝐴) + 1)))) | |
20 | 18, 19 | syl 17 | . 2 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (♯‘(𝐴...𝐵)) = (♯‘(1...((𝐵 − 𝐴) + 1)))) |
21 | uznn0sub 12897 | . . 3 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (𝐵 − 𝐴) ∈ ℕ0) | |
22 | peano2nn0 12548 | . . 3 ⊢ ((𝐵 − 𝐴) ∈ ℕ0 → ((𝐵 − 𝐴) + 1) ∈ ℕ0) | |
23 | hashfz1 14343 | . . 3 ⊢ (((𝐵 − 𝐴) + 1) ∈ ℕ0 → (♯‘(1...((𝐵 − 𝐴) + 1))) = ((𝐵 − 𝐴) + 1)) | |
24 | 21, 22, 23 | 3syl 18 | . 2 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (♯‘(1...((𝐵 − 𝐴) + 1))) = ((𝐵 − 𝐴) + 1)) |
25 | 20, 24 | eqtrd 2767 | 1 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (♯‘(𝐴...𝐵)) = ((𝐵 − 𝐴) + 1)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1533 ∈ wcel 2098 class class class wbr 5150 ‘cfv 6551 (class class class)co 7424 ≈ cen 8965 ℂcc 11142 1c1 11145 + caddc 11147 − cmin 11480 ℕ0cn0 12508 ℤcz 12594 ℤ≥cuz 12858 ...cfz 13522 ♯chash 14327 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2698 ax-sep 5301 ax-nul 5308 ax-pow 5367 ax-pr 5431 ax-un 7744 ax-cnex 11200 ax-resscn 11201 ax-1cn 11202 ax-icn 11203 ax-addcl 11204 ax-addrcl 11205 ax-mulcl 11206 ax-mulrcl 11207 ax-mulcom 11208 ax-addass 11209 ax-mulass 11210 ax-distr 11211 ax-i2m1 11212 ax-1ne0 11213 ax-1rid 11214 ax-rnegex 11215 ax-rrecex 11216 ax-cnre 11217 ax-pre-lttri 11218 ax-pre-lttrn 11219 ax-pre-ltadd 11220 ax-pre-mulgt0 11221 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2937 df-nel 3043 df-ral 3058 df-rex 3067 df-reu 3373 df-rab 3429 df-v 3473 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4325 df-if 4531 df-pw 4606 df-sn 4631 df-pr 4633 df-op 4637 df-uni 4911 df-int 4952 df-iun 5000 df-br 5151 df-opab 5213 df-mpt 5234 df-tr 5268 df-id 5578 df-eprel 5584 df-po 5592 df-so 5593 df-fr 5635 df-we 5637 df-xp 5686 df-rel 5687 df-cnv 5688 df-co 5689 df-dm 5690 df-rn 5691 df-res 5692 df-ima 5693 df-pred 6308 df-ord 6375 df-on 6376 df-lim 6377 df-suc 6378 df-iota 6503 df-fun 6553 df-fn 6554 df-f 6555 df-f1 6556 df-fo 6557 df-f1o 6558 df-fv 6559 df-riota 7380 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7875 df-1st 7997 df-2nd 7998 df-frecs 8291 df-wrecs 8322 df-recs 8396 df-rdg 8435 df-1o 8491 df-er 8729 df-en 8969 df-dom 8970 df-sdom 8971 df-fin 8972 df-card 9968 df-pnf 11286 df-mnf 11287 df-xr 11288 df-ltxr 11289 df-le 11290 df-sub 11482 df-neg 11483 df-nn 12249 df-n0 12509 df-z 12595 df-uz 12859 df-fz 13523 df-hash 14328 |
This theorem is referenced by: fzsdom2 14425 hashfzo 14426 hashfzp1 14428 hashfz0 14429 0sgmppw 27149 logfaclbnd 27173 gausslemma2dlem5 27322 ballotlem2 34113 subfacp1lem5 34799 fzisoeu 44684 stoweidlem11 45401 stoweidlem26 45416 |
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