Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > shftval | GIF version |
Description: Value of a sequence shifted by 𝐴. (Contributed by NM, 20-Jul-2005.) (Revised by Mario Carneiro, 4-Nov-2013.) |
Ref | Expression |
---|---|
shftfval.1 | ⊢ 𝐹 ∈ V |
Ref | Expression |
---|---|
shftval | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐹 shift 𝐴)‘𝐵) = (𝐹‘(𝐵 − 𝐴))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | shftfval.1 | . . . . 5 ⊢ 𝐹 ∈ V | |
2 | 1 | shftfib 10705 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐹 shift 𝐴) “ {𝐵}) = (𝐹 “ {(𝐵 − 𝐴)})) |
3 | 2 | eleq2d 2227 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝑥 ∈ ((𝐹 shift 𝐴) “ {𝐵}) ↔ 𝑥 ∈ (𝐹 “ {(𝐵 − 𝐴)}))) |
4 | 3 | iotabidv 5153 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (℩𝑥𝑥 ∈ ((𝐹 shift 𝐴) “ {𝐵})) = (℩𝑥𝑥 ∈ (𝐹 “ {(𝐵 − 𝐴)}))) |
5 | simpr 109 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → 𝐵 ∈ ℂ) | |
6 | dffv3g 5461 | . . 3 ⊢ (𝐵 ∈ ℂ → ((𝐹 shift 𝐴)‘𝐵) = (℩𝑥𝑥 ∈ ((𝐹 shift 𝐴) “ {𝐵}))) | |
7 | 5, 6 | syl 14 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐹 shift 𝐴)‘𝐵) = (℩𝑥𝑥 ∈ ((𝐹 shift 𝐴) “ {𝐵}))) |
8 | simpl 108 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → 𝐴 ∈ ℂ) | |
9 | 5, 8 | subcld 8169 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐵 − 𝐴) ∈ ℂ) |
10 | dffv3g 5461 | . . 3 ⊢ ((𝐵 − 𝐴) ∈ ℂ → (𝐹‘(𝐵 − 𝐴)) = (℩𝑥𝑥 ∈ (𝐹 “ {(𝐵 − 𝐴)}))) | |
11 | 9, 10 | syl 14 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐹‘(𝐵 − 𝐴)) = (℩𝑥𝑥 ∈ (𝐹 “ {(𝐵 − 𝐴)}))) |
12 | 4, 7, 11 | 3eqtr4d 2200 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐹 shift 𝐴)‘𝐵) = (𝐹‘(𝐵 − 𝐴))) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 = wceq 1335 ∈ wcel 2128 Vcvv 2712 {csn 3560 “ cima 4586 ℩cio 5130 ‘cfv 5167 (class class class)co 5818 ℂcc 7713 − cmin 8029 shift cshi 10696 |
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-coll 4079 ax-sep 4082 ax-pow 4134 ax-pr 4168 ax-un 4392 ax-setind 4494 ax-resscn 7807 ax-1cn 7808 ax-icn 7810 ax-addcl 7811 ax-addrcl 7812 ax-mulcl 7813 ax-addcom 7815 ax-addass 7817 ax-distr 7819 ax-i2m1 7820 ax-0id 7823 ax-rnegex 7824 ax-cnre 7826 |
This theorem depends on definitions: df-bi 116 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-ral 2440 df-rex 2441 df-reu 2442 df-rab 2444 df-v 2714 df-sbc 2938 df-csb 3032 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-iun 3851 df-br 3966 df-opab 4026 df-mpt 4027 df-id 4252 df-xp 4589 df-rel 4590 df-cnv 4591 df-co 4592 df-dm 4593 df-rn 4594 df-res 4595 df-ima 4596 df-iota 5132 df-fun 5169 df-fn 5170 df-f 5171 df-f1 5172 df-fo 5173 df-f1o 5174 df-fv 5175 df-riota 5774 df-ov 5821 df-oprab 5822 df-mpo 5823 df-sub 8031 df-shft 10697 |
This theorem is referenced by: shftval2 10708 shftval4 10710 shftval5 10711 shftf 10712 shftvalg 10718 isumshft 11369 |
Copyright terms: Public domain | W3C validator |