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| Mirrors > Home > ILE Home > Th. List > shftidt2 | GIF version | ||
| Description: Identity law for the shift operation. (Contributed by Mario Carneiro, 5-Nov-2013.) |
| Ref | Expression |
|---|---|
| shftfval.1 | ⊢ 𝐹 ∈ V |
| Ref | Expression |
|---|---|
| shftidt2 | ⊢ (𝐹 shift 0) = (𝐹 ↾ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | subid1 8398 | . . . . 5 ⊢ (𝑥 ∈ ℂ → (𝑥 − 0) = 𝑥) | |
| 2 | 1 | breq1d 4098 | . . . 4 ⊢ (𝑥 ∈ ℂ → ((𝑥 − 0)𝐹𝑦 ↔ 𝑥𝐹𝑦)) |
| 3 | 2 | pm5.32i 454 | . . 3 ⊢ ((𝑥 ∈ ℂ ∧ (𝑥 − 0)𝐹𝑦) ↔ (𝑥 ∈ ℂ ∧ 𝑥𝐹𝑦)) |
| 4 | 3 | opabbii 4156 | . 2 ⊢ {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℂ ∧ (𝑥 − 0)𝐹𝑦)} = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℂ ∧ 𝑥𝐹𝑦)} |
| 5 | 0cn 8170 | . . 3 ⊢ 0 ∈ ℂ | |
| 6 | shftfval.1 | . . . 4 ⊢ 𝐹 ∈ V | |
| 7 | 6 | shftfval 11381 | . . 3 ⊢ (0 ∈ ℂ → (𝐹 shift 0) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℂ ∧ (𝑥 − 0)𝐹𝑦)}) |
| 8 | 5, 7 | ax-mp 5 | . 2 ⊢ (𝐹 shift 0) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℂ ∧ (𝑥 − 0)𝐹𝑦)} |
| 9 | dfres2 5065 | . 2 ⊢ (𝐹 ↾ ℂ) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ ℂ ∧ 𝑥𝐹𝑦)} | |
| 10 | 4, 8, 9 | 3eqtr4i 2262 | 1 ⊢ (𝐹 shift 0) = (𝐹 ↾ ℂ) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 = wceq 1397 ∈ wcel 2202 Vcvv 2802 class class class wbr 4088 {copab 4149 ↾ cres 4727 (class class class)co 6017 ℂcc 8029 0cc0 8031 − cmin 8349 shift cshi 11374 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-coll 4204 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-resscn 8123 ax-1cn 8124 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-addcom 8131 ax-addass 8133 ax-distr 8135 ax-i2m1 8136 ax-0id 8139 ax-rnegex 8140 ax-cnre 8142 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-f1o 5333 df-fv 5334 df-riota 5970 df-ov 6020 df-oprab 6021 df-mpo 6022 df-sub 8351 df-shft 11375 |
| This theorem is referenced by: shftidt 11393 |
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