Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > fzen2 | Structured version Visualization version GIF version |
Description: The cardinality of a finite set of sequential integers with arbitrary endpoints. (Contributed by Mario Carneiro, 13-Feb-2014.) |
Ref | Expression |
---|---|
fzennn.1 | ⊢ 𝐺 = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) |
Ref | Expression |
---|---|
fzen2 | ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑀...𝑁) ≈ (◡𝐺‘((𝑁 + 1) − 𝑀))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzel2 12516 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ) | |
2 | eluzelz 12521 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑁 ∈ ℤ) | |
3 | 1z 12280 | . . . . 5 ⊢ 1 ∈ ℤ | |
4 | zsubcl 12292 | . . . . 5 ⊢ ((1 ∈ ℤ ∧ 𝑀 ∈ ℤ) → (1 − 𝑀) ∈ ℤ) | |
5 | 3, 1, 4 | sylancr 586 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (1 − 𝑀) ∈ ℤ) |
6 | fzen 13202 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ (1 − 𝑀) ∈ ℤ) → (𝑀...𝑁) ≈ ((𝑀 + (1 − 𝑀))...(𝑁 + (1 − 𝑀)))) | |
7 | 1, 2, 5, 6 | syl3anc 1369 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑀...𝑁) ≈ ((𝑀 + (1 − 𝑀))...(𝑁 + (1 − 𝑀)))) |
8 | 1 | zcnd 12356 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℂ) |
9 | ax-1cn 10860 | . . . . 5 ⊢ 1 ∈ ℂ | |
10 | pncan3 11159 | . . . . 5 ⊢ ((𝑀 ∈ ℂ ∧ 1 ∈ ℂ) → (𝑀 + (1 − 𝑀)) = 1) | |
11 | 8, 9, 10 | sylancl 585 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑀 + (1 − 𝑀)) = 1) |
12 | zcn 12254 | . . . . . . 7 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℂ) | |
13 | zcn 12254 | . . . . . . 7 ⊢ (𝑀 ∈ ℤ → 𝑀 ∈ ℂ) | |
14 | addsubass 11161 | . . . . . . . 8 ⊢ ((𝑁 ∈ ℂ ∧ 1 ∈ ℂ ∧ 𝑀 ∈ ℂ) → ((𝑁 + 1) − 𝑀) = (𝑁 + (1 − 𝑀))) | |
15 | 9, 14 | mp3an2 1447 | . . . . . . 7 ⊢ ((𝑁 ∈ ℂ ∧ 𝑀 ∈ ℂ) → ((𝑁 + 1) − 𝑀) = (𝑁 + (1 − 𝑀))) |
16 | 12, 13, 15 | syl2an 595 | . . . . . 6 ⊢ ((𝑁 ∈ ℤ ∧ 𝑀 ∈ ℤ) → ((𝑁 + 1) − 𝑀) = (𝑁 + (1 − 𝑀))) |
17 | 2, 1, 16 | syl2anc 583 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → ((𝑁 + 1) − 𝑀) = (𝑁 + (1 − 𝑀))) |
18 | 17 | eqcomd 2744 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑁 + (1 − 𝑀)) = ((𝑁 + 1) − 𝑀)) |
19 | 11, 18 | oveq12d 7273 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → ((𝑀 + (1 − 𝑀))...(𝑁 + (1 − 𝑀))) = (1...((𝑁 + 1) − 𝑀))) |
20 | 7, 19 | breqtrd 5096 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑀...𝑁) ≈ (1...((𝑁 + 1) − 𝑀))) |
21 | peano2uz 12570 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑁 + 1) ∈ (ℤ≥‘𝑀)) | |
22 | uznn0sub 12546 | . . 3 ⊢ ((𝑁 + 1) ∈ (ℤ≥‘𝑀) → ((𝑁 + 1) − 𝑀) ∈ ℕ0) | |
23 | fzennn.1 | . . . 4 ⊢ 𝐺 = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 0) ↾ ω) | |
24 | 23 | fzennn 13616 | . . 3 ⊢ (((𝑁 + 1) − 𝑀) ∈ ℕ0 → (1...((𝑁 + 1) − 𝑀)) ≈ (◡𝐺‘((𝑁 + 1) − 𝑀))) |
25 | 21, 22, 24 | 3syl 18 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (1...((𝑁 + 1) − 𝑀)) ≈ (◡𝐺‘((𝑁 + 1) − 𝑀))) |
26 | entr 8747 | . 2 ⊢ (((𝑀...𝑁) ≈ (1...((𝑁 + 1) − 𝑀)) ∧ (1...((𝑁 + 1) − 𝑀)) ≈ (◡𝐺‘((𝑁 + 1) − 𝑀))) → (𝑀...𝑁) ≈ (◡𝐺‘((𝑁 + 1) − 𝑀))) | |
27 | 20, 25, 26 | syl2anc 583 | 1 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑀...𝑁) ≈ (◡𝐺‘((𝑁 + 1) − 𝑀))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2108 Vcvv 3422 class class class wbr 5070 ↦ cmpt 5153 ◡ccnv 5579 ↾ cres 5582 ‘cfv 6418 (class class class)co 7255 ωcom 7687 reccrdg 8211 ≈ cen 8688 ℂcc 10800 0cc0 10802 1c1 10803 + caddc 10805 − cmin 11135 ℕ0cn0 12163 ℤcz 12249 ℤ≥cuz 12511 ...cfz 13168 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-n0 12164 df-z 12250 df-uz 12512 df-fz 13169 |
This theorem is referenced by: fzfi 13620 |
Copyright terms: Public domain | W3C validator |