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Mirrors > Home > ILE Home > Th. List > fzoss2 | GIF version |
Description: Subset relationship for half-open sequences of integers. (Contributed by Stefan O'Rear, 15-Aug-2015.) (Revised by Mario Carneiro, 29-Sep-2015.) |
Ref | Expression |
---|---|
fzoss2 | ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (𝑀..^𝐾) ⊆ (𝑀..^𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzel2 9324 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → 𝐾 ∈ ℤ) | |
2 | peano2zm 9085 | . . . . 5 ⊢ (𝐾 ∈ ℤ → (𝐾 − 1) ∈ ℤ) | |
3 | 1, 2 | syl 14 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (𝐾 − 1) ∈ ℤ) |
4 | 1zzd 9074 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → 1 ∈ ℤ) | |
5 | id 19 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → 𝑁 ∈ (ℤ≥‘𝐾)) | |
6 | 1 | zcnd 9167 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → 𝐾 ∈ ℂ) |
7 | ax-1cn 7706 | . . . . . . 7 ⊢ 1 ∈ ℂ | |
8 | npcan 7964 | . . . . . . 7 ⊢ ((𝐾 ∈ ℂ ∧ 1 ∈ ℂ) → ((𝐾 − 1) + 1) = 𝐾) | |
9 | 6, 7, 8 | sylancl 409 | . . . . . 6 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → ((𝐾 − 1) + 1) = 𝐾) |
10 | 9 | fveq2d 5418 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (ℤ≥‘((𝐾 − 1) + 1)) = (ℤ≥‘𝐾)) |
11 | 5, 10 | eleqtrrd 2217 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → 𝑁 ∈ (ℤ≥‘((𝐾 − 1) + 1))) |
12 | eluzsub 9348 | . . . 4 ⊢ (((𝐾 − 1) ∈ ℤ ∧ 1 ∈ ℤ ∧ 𝑁 ∈ (ℤ≥‘((𝐾 − 1) + 1))) → (𝑁 − 1) ∈ (ℤ≥‘(𝐾 − 1))) | |
13 | 3, 4, 11, 12 | syl3anc 1216 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (𝑁 − 1) ∈ (ℤ≥‘(𝐾 − 1))) |
14 | fzss2 9837 | . . 3 ⊢ ((𝑁 − 1) ∈ (ℤ≥‘(𝐾 − 1)) → (𝑀...(𝐾 − 1)) ⊆ (𝑀...(𝑁 − 1))) | |
15 | 13, 14 | syl 14 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (𝑀...(𝐾 − 1)) ⊆ (𝑀...(𝑁 − 1))) |
16 | fzoval 9918 | . . 3 ⊢ (𝐾 ∈ ℤ → (𝑀..^𝐾) = (𝑀...(𝐾 − 1))) | |
17 | 1, 16 | syl 14 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (𝑀..^𝐾) = (𝑀...(𝐾 − 1))) |
18 | eluzelz 9328 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → 𝑁 ∈ ℤ) | |
19 | fzoval 9918 | . . 3 ⊢ (𝑁 ∈ ℤ → (𝑀..^𝑁) = (𝑀...(𝑁 − 1))) | |
20 | 18, 19 | syl 14 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (𝑀..^𝑁) = (𝑀...(𝑁 − 1))) |
21 | 15, 17, 20 | 3sstr4d 3137 | 1 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (𝑀..^𝐾) ⊆ (𝑀..^𝑁)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1331 ∈ wcel 1480 ⊆ wss 3066 ‘cfv 5118 (class class class)co 5767 ℂcc 7611 1c1 7614 + caddc 7616 − cmin 7926 ℤcz 9047 ℤ≥cuz 9319 ...cfz 9783 ..^cfzo 9912 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-pow 4093 ax-pr 4126 ax-un 4350 ax-setind 4447 ax-cnex 7704 ax-resscn 7705 ax-1cn 7706 ax-1re 7707 ax-icn 7708 ax-addcl 7709 ax-addrcl 7710 ax-mulcl 7711 ax-addcom 7713 ax-addass 7715 ax-distr 7717 ax-i2m1 7718 ax-0lt1 7719 ax-0id 7721 ax-rnegex 7722 ax-cnre 7724 ax-pre-ltirr 7725 ax-pre-ltwlin 7726 ax-pre-lttrn 7727 ax-pre-ltadd 7729 |
This theorem depends on definitions: df-bi 116 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ne 2307 df-nel 2402 df-ral 2419 df-rex 2420 df-reu 2421 df-rab 2423 df-v 2683 df-sbc 2905 df-csb 2999 df-dif 3068 df-un 3070 df-in 3072 df-ss 3079 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-int 3767 df-iun 3810 df-br 3925 df-opab 3985 df-mpt 3986 df-id 4210 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-rn 4545 df-res 4546 df-ima 4547 df-iota 5083 df-fun 5120 df-fn 5121 df-f 5122 df-fv 5126 df-riota 5723 df-ov 5770 df-oprab 5771 df-mpo 5772 df-1st 6031 df-2nd 6032 df-pnf 7795 df-mnf 7796 df-xr 7797 df-ltxr 7798 df-le 7799 df-sub 7928 df-neg 7929 df-inn 8714 df-n0 8971 df-z 9048 df-uz 9320 df-fz 9784 df-fzo 9913 |
This theorem is referenced by: fzossrbm1 9943 fzosplit 9947 fzossfzop1 9982 |
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