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Mirrors > Home > ILE Home > Th. List > fzsubel | GIF version |
Description: Membership of a difference in a finite set of sequential integers. (Contributed by NM, 30-Jul-2005.) |
Ref | Expression |
---|---|
fzsubel | ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝐽 ∈ ℤ ∧ 𝐾 ∈ ℤ)) → (𝐽 ∈ (𝑀...𝑁) ↔ (𝐽 − 𝐾) ∈ ((𝑀 − 𝐾)...(𝑁 − 𝐾)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | znegcl 9198 | . . 3 ⊢ (𝐾 ∈ ℤ → -𝐾 ∈ ℤ) | |
2 | fzaddel 9961 | . . 3 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝐽 ∈ ℤ ∧ -𝐾 ∈ ℤ)) → (𝐽 ∈ (𝑀...𝑁) ↔ (𝐽 + -𝐾) ∈ ((𝑀 + -𝐾)...(𝑁 + -𝐾)))) | |
3 | 1, 2 | sylanr2 403 | . 2 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝐽 ∈ ℤ ∧ 𝐾 ∈ ℤ)) → (𝐽 ∈ (𝑀...𝑁) ↔ (𝐽 + -𝐾) ∈ ((𝑀 + -𝐾)...(𝑁 + -𝐾)))) |
4 | zcn 9172 | . . . 4 ⊢ (𝑀 ∈ ℤ → 𝑀 ∈ ℂ) | |
5 | zcn 9172 | . . . 4 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℂ) | |
6 | 4, 5 | anim12i 336 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑀 ∈ ℂ ∧ 𝑁 ∈ ℂ)) |
7 | zcn 9172 | . . . 4 ⊢ (𝐽 ∈ ℤ → 𝐽 ∈ ℂ) | |
8 | zcn 9172 | . . . 4 ⊢ (𝐾 ∈ ℤ → 𝐾 ∈ ℂ) | |
9 | 7, 8 | anim12i 336 | . . 3 ⊢ ((𝐽 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝐽 ∈ ℂ ∧ 𝐾 ∈ ℂ)) |
10 | negsub 8123 | . . . . 5 ⊢ ((𝐽 ∈ ℂ ∧ 𝐾 ∈ ℂ) → (𝐽 + -𝐾) = (𝐽 − 𝐾)) | |
11 | 10 | adantl 275 | . . . 4 ⊢ (((𝑀 ∈ ℂ ∧ 𝑁 ∈ ℂ) ∧ (𝐽 ∈ ℂ ∧ 𝐾 ∈ ℂ)) → (𝐽 + -𝐾) = (𝐽 − 𝐾)) |
12 | negsub 8123 | . . . . . . 7 ⊢ ((𝑀 ∈ ℂ ∧ 𝐾 ∈ ℂ) → (𝑀 + -𝐾) = (𝑀 − 𝐾)) | |
13 | negsub 8123 | . . . . . . 7 ⊢ ((𝑁 ∈ ℂ ∧ 𝐾 ∈ ℂ) → (𝑁 + -𝐾) = (𝑁 − 𝐾)) | |
14 | 12, 13 | oveqan12d 5843 | . . . . . 6 ⊢ (((𝑀 ∈ ℂ ∧ 𝐾 ∈ ℂ) ∧ (𝑁 ∈ ℂ ∧ 𝐾 ∈ ℂ)) → ((𝑀 + -𝐾)...(𝑁 + -𝐾)) = ((𝑀 − 𝐾)...(𝑁 − 𝐾))) |
15 | 14 | anandirs 583 | . . . . 5 ⊢ (((𝑀 ∈ ℂ ∧ 𝑁 ∈ ℂ) ∧ 𝐾 ∈ ℂ) → ((𝑀 + -𝐾)...(𝑁 + -𝐾)) = ((𝑀 − 𝐾)...(𝑁 − 𝐾))) |
16 | 15 | adantrl 470 | . . . 4 ⊢ (((𝑀 ∈ ℂ ∧ 𝑁 ∈ ℂ) ∧ (𝐽 ∈ ℂ ∧ 𝐾 ∈ ℂ)) → ((𝑀 + -𝐾)...(𝑁 + -𝐾)) = ((𝑀 − 𝐾)...(𝑁 − 𝐾))) |
17 | 11, 16 | eleq12d 2228 | . . 3 ⊢ (((𝑀 ∈ ℂ ∧ 𝑁 ∈ ℂ) ∧ (𝐽 ∈ ℂ ∧ 𝐾 ∈ ℂ)) → ((𝐽 + -𝐾) ∈ ((𝑀 + -𝐾)...(𝑁 + -𝐾)) ↔ (𝐽 − 𝐾) ∈ ((𝑀 − 𝐾)...(𝑁 − 𝐾)))) |
18 | 6, 9, 17 | syl2an 287 | . 2 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝐽 ∈ ℤ ∧ 𝐾 ∈ ℤ)) → ((𝐽 + -𝐾) ∈ ((𝑀 + -𝐾)...(𝑁 + -𝐾)) ↔ (𝐽 − 𝐾) ∈ ((𝑀 − 𝐾)...(𝑁 − 𝐾)))) |
19 | 3, 18 | bitrd 187 | 1 ⊢ (((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) ∧ (𝐽 ∈ ℤ ∧ 𝐾 ∈ ℤ)) → (𝐽 ∈ (𝑀...𝑁) ↔ (𝐽 − 𝐾) ∈ ((𝑀 − 𝐾)...(𝑁 − 𝐾)))) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ↔ wb 104 = wceq 1335 ∈ wcel 2128 (class class class)co 5824 ℂcc 7730 + caddc 7735 − cmin 8046 -cneg 8047 ℤcz 9167 ...cfz 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 604 ax-in2 605 ax-io 699 ax-5 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-13 2130 ax-14 2131 ax-ext 2139 ax-sep 4082 ax-pow 4135 ax-pr 4169 ax-un 4393 ax-setind 4496 ax-cnex 7823 ax-resscn 7824 ax-1cn 7825 ax-1re 7826 ax-icn 7827 ax-addcl 7828 ax-addrcl 7829 ax-mulcl 7830 ax-addcom 7832 ax-addass 7834 ax-distr 7836 ax-i2m1 7837 ax-0lt1 7838 ax-0id 7840 ax-rnegex 7841 ax-cnre 7843 ax-pre-ltirr 7844 ax-pre-ltwlin 7845 ax-pre-lttrn 7846 ax-pre-ltadd 7848 |
This theorem depends on definitions: df-bi 116 df-3or 964 df-3an 965 df-tru 1338 df-fal 1341 df-nf 1441 df-sb 1743 df-eu 2009 df-mo 2010 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ne 2328 df-nel 2423 df-ral 2440 df-rex 2441 df-reu 2442 df-rab 2444 df-v 2714 df-sbc 2938 df-dif 3104 df-un 3106 df-in 3108 df-ss 3115 df-pw 3545 df-sn 3566 df-pr 3567 df-op 3569 df-uni 3773 df-int 3808 df-br 3966 df-opab 4026 df-id 4253 df-xp 4592 df-rel 4593 df-cnv 4594 df-co 4595 df-dm 4596 df-iota 5135 df-fun 5172 df-fv 5178 df-riota 5780 df-ov 5827 df-oprab 5828 df-mpo 5829 df-pnf 7914 df-mnf 7915 df-xr 7916 df-ltxr 7917 df-le 7918 df-sub 8048 df-neg 8049 df-inn 8834 df-n0 9091 df-z 9168 df-fz 9913 |
This theorem is referenced by: elfzp1b 9999 elfzm1b 10000 fisum0diag2 11344 |
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