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Mirrors > Home > ILE Home > Th. List > shftuz | GIF version |
Description: A shift of the upper integers. (Contributed by Mario Carneiro, 5-Nov-2013.) |
Ref | Expression |
---|---|
shftuz | ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → {𝑥 ∈ ℂ ∣ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)} = (ℤ≥‘(𝐵 + 𝐴))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rab 2457 | . 2 ⊢ {𝑥 ∈ ℂ ∣ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)} = {𝑥 ∣ (𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵))} | |
2 | simp2 993 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℤ ∧ 𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) → 𝑥 ∈ ℂ) | |
3 | zcn 9217 | . . . . . . . . 9 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℂ) | |
4 | 3 | 3ad2ant1 1013 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℤ ∧ 𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) → 𝐴 ∈ ℂ) |
5 | 2, 4 | npcand 8234 | . . . . . . 7 ⊢ ((𝐴 ∈ ℤ ∧ 𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) → ((𝑥 − 𝐴) + 𝐴) = 𝑥) |
6 | eluzadd 9515 | . . . . . . . . 9 ⊢ (((𝑥 − 𝐴) ∈ (ℤ≥‘𝐵) ∧ 𝐴 ∈ ℤ) → ((𝑥 − 𝐴) + 𝐴) ∈ (ℤ≥‘(𝐵 + 𝐴))) | |
7 | 6 | ancoms 266 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℤ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) → ((𝑥 − 𝐴) + 𝐴) ∈ (ℤ≥‘(𝐵 + 𝐴))) |
8 | 7 | 3adant2 1011 | . . . . . . 7 ⊢ ((𝐴 ∈ ℤ ∧ 𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) → ((𝑥 − 𝐴) + 𝐴) ∈ (ℤ≥‘(𝐵 + 𝐴))) |
9 | 5, 8 | eqeltrrd 2248 | . . . . . 6 ⊢ ((𝐴 ∈ ℤ ∧ 𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) → 𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴))) |
10 | 9 | 3expib 1201 | . . . . 5 ⊢ (𝐴 ∈ ℤ → ((𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) → 𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴)))) |
11 | 10 | adantr 274 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → ((𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) → 𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴)))) |
12 | eluzelcn 9498 | . . . . . 6 ⊢ (𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴)) → 𝑥 ∈ ℂ) | |
13 | 12 | a1i 9 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴)) → 𝑥 ∈ ℂ)) |
14 | eluzsub 9516 | . . . . . . 7 ⊢ ((𝐵 ∈ ℤ ∧ 𝐴 ∈ ℤ ∧ 𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴))) → (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) | |
15 | 14 | 3expia 1200 | . . . . . 6 ⊢ ((𝐵 ∈ ℤ ∧ 𝐴 ∈ ℤ) → (𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴)) → (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵))) |
16 | 15 | ancoms 266 | . . . . 5 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴)) → (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵))) |
17 | 13, 16 | jcad 305 | . . . 4 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴)) → (𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)))) |
18 | 11, 17 | impbid 128 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → ((𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)) ↔ 𝑥 ∈ (ℤ≥‘(𝐵 + 𝐴)))) |
19 | 18 | abbi1dv 2290 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → {𝑥 ∣ (𝑥 ∈ ℂ ∧ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵))} = (ℤ≥‘(𝐵 + 𝐴))) |
20 | 1, 19 | eqtrid 2215 | 1 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → {𝑥 ∈ ℂ ∣ (𝑥 − 𝐴) ∈ (ℤ≥‘𝐵)} = (ℤ≥‘(𝐵 + 𝐴))) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∧ w3a 973 = wceq 1348 ∈ wcel 2141 {cab 2156 {crab 2452 ‘cfv 5198 (class class class)co 5853 ℂcc 7772 + caddc 7777 − cmin 8090 ℤcz 9212 ℤ≥cuz 9487 |
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 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 ax-cnex 7865 ax-resscn 7866 ax-1cn 7867 ax-1re 7868 ax-icn 7869 ax-addcl 7870 ax-addrcl 7871 ax-mulcl 7872 ax-addcom 7874 ax-addass 7876 ax-distr 7878 ax-i2m1 7879 ax-0lt1 7880 ax-0id 7882 ax-rnegex 7883 ax-cnre 7885 ax-pre-ltirr 7886 ax-pre-ltwlin 7887 ax-pre-lttrn 7888 ax-pre-ltadd 7890 |
This theorem depends on definitions: df-bi 116 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-nel 2436 df-ral 2453 df-rex 2454 df-reu 2455 df-rab 2457 df-v 2732 df-sbc 2956 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-br 3990 df-opab 4051 df-mpt 4052 df-id 4278 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-fv 5206 df-riota 5809 df-ov 5856 df-oprab 5857 df-mpo 5858 df-pnf 7956 df-mnf 7957 df-xr 7958 df-ltxr 7959 df-le 7960 df-sub 8092 df-neg 8093 df-inn 8879 df-n0 9136 df-z 9213 df-uz 9488 |
This theorem is referenced by: seq3shft 10802 |
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