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| Mirrors > Home > ILE Home > Th. List > modremain | GIF version | ||
| Description: The result of the modulo operation is the remainder of the division algorithm. (Contributed by AV, 19-Aug-2021.) |
| Ref | Expression |
|---|---|
| modremain | ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → ((𝑁 mod 𝐷) = 𝑅 ↔ ∃𝑧 ∈ ℤ ((𝑧 · 𝐷) + 𝑅) = 𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqcom 2233 | . 2 ⊢ ((𝑁 mod 𝐷) = 𝑅 ↔ 𝑅 = (𝑁 mod 𝐷)) | |
| 2 | divalgmodcl 12494 | . . . 4 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ 𝑅 ∈ ℕ0) → (𝑅 = (𝑁 mod 𝐷) ↔ (𝑅 < 𝐷 ∧ 𝐷 ∥ (𝑁 − 𝑅)))) | |
| 3 | 2 | 3adant3r 1261 | . . 3 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → (𝑅 = (𝑁 mod 𝐷) ↔ (𝑅 < 𝐷 ∧ 𝐷 ∥ (𝑁 − 𝑅)))) |
| 4 | ibar 301 | . . . . 5 ⊢ (𝑅 < 𝐷 → (𝐷 ∥ (𝑁 − 𝑅) ↔ (𝑅 < 𝐷 ∧ 𝐷 ∥ (𝑁 − 𝑅)))) | |
| 5 | 4 | adantl 277 | . . . 4 ⊢ ((𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷) → (𝐷 ∥ (𝑁 − 𝑅) ↔ (𝑅 < 𝐷 ∧ 𝐷 ∥ (𝑁 − 𝑅)))) |
| 6 | 5 | 3ad2ant3 1046 | . . 3 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → (𝐷 ∥ (𝑁 − 𝑅) ↔ (𝑅 < 𝐷 ∧ 𝐷 ∥ (𝑁 − 𝑅)))) |
| 7 | nnz 9498 | . . . . . 6 ⊢ (𝐷 ∈ ℕ → 𝐷 ∈ ℤ) | |
| 8 | 7 | 3ad2ant2 1045 | . . . . 5 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → 𝐷 ∈ ℤ) |
| 9 | simp1 1023 | . . . . . 6 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → 𝑁 ∈ ℤ) | |
| 10 | nn0z 9499 | . . . . . . . 8 ⊢ (𝑅 ∈ ℕ0 → 𝑅 ∈ ℤ) | |
| 11 | 10 | adantr 276 | . . . . . . 7 ⊢ ((𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷) → 𝑅 ∈ ℤ) |
| 12 | 11 | 3ad2ant3 1046 | . . . . . 6 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → 𝑅 ∈ ℤ) |
| 13 | 9, 12 | zsubcld 9607 | . . . . 5 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → (𝑁 − 𝑅) ∈ ℤ) |
| 14 | divides 12355 | . . . . 5 ⊢ ((𝐷 ∈ ℤ ∧ (𝑁 − 𝑅) ∈ ℤ) → (𝐷 ∥ (𝑁 − 𝑅) ↔ ∃𝑧 ∈ ℤ (𝑧 · 𝐷) = (𝑁 − 𝑅))) | |
| 15 | 8, 13, 14 | syl2anc 411 | . . . 4 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → (𝐷 ∥ (𝑁 − 𝑅) ↔ ∃𝑧 ∈ ℤ (𝑧 · 𝐷) = (𝑁 − 𝑅))) |
| 16 | eqcom 2233 | . . . . . 6 ⊢ ((𝑧 · 𝐷) = (𝑁 − 𝑅) ↔ (𝑁 − 𝑅) = (𝑧 · 𝐷)) | |
| 17 | zcn 9484 | . . . . . . . . 9 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℂ) | |
| 18 | 17 | 3ad2ant1 1044 | . . . . . . . 8 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → 𝑁 ∈ ℂ) |
| 19 | 18 | adantr 276 | . . . . . . 7 ⊢ (((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) ∧ 𝑧 ∈ ℤ) → 𝑁 ∈ ℂ) |
| 20 | nn0cn 9412 | . . . . . . . . . 10 ⊢ (𝑅 ∈ ℕ0 → 𝑅 ∈ ℂ) | |
| 21 | 20 | adantr 276 | . . . . . . . . 9 ⊢ ((𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷) → 𝑅 ∈ ℂ) |
| 22 | 21 | 3ad2ant3 1046 | . . . . . . . 8 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → 𝑅 ∈ ℂ) |
| 23 | 22 | adantr 276 | . . . . . . 7 ⊢ (((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) ∧ 𝑧 ∈ ℤ) → 𝑅 ∈ ℂ) |
| 24 | simpr 110 | . . . . . . . . 9 ⊢ (((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) ∧ 𝑧 ∈ ℤ) → 𝑧 ∈ ℤ) | |
| 25 | 8 | adantr 276 | . . . . . . . . 9 ⊢ (((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) ∧ 𝑧 ∈ ℤ) → 𝐷 ∈ ℤ) |
| 26 | 24, 25 | zmulcld 9608 | . . . . . . . 8 ⊢ (((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) ∧ 𝑧 ∈ ℤ) → (𝑧 · 𝐷) ∈ ℤ) |
| 27 | 26 | zcnd 9603 | . . . . . . 7 ⊢ (((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) ∧ 𝑧 ∈ ℤ) → (𝑧 · 𝐷) ∈ ℂ) |
| 28 | 19, 23, 27 | subadd2d 8509 | . . . . . 6 ⊢ (((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) ∧ 𝑧 ∈ ℤ) → ((𝑁 − 𝑅) = (𝑧 · 𝐷) ↔ ((𝑧 · 𝐷) + 𝑅) = 𝑁)) |
| 29 | 16, 28 | bitrid 192 | . . . . 5 ⊢ (((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) ∧ 𝑧 ∈ ℤ) → ((𝑧 · 𝐷) = (𝑁 − 𝑅) ↔ ((𝑧 · 𝐷) + 𝑅) = 𝑁)) |
| 30 | 29 | rexbidva 2529 | . . . 4 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → (∃𝑧 ∈ ℤ (𝑧 · 𝐷) = (𝑁 − 𝑅) ↔ ∃𝑧 ∈ ℤ ((𝑧 · 𝐷) + 𝑅) = 𝑁)) |
| 31 | 15, 30 | bitrd 188 | . . 3 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → (𝐷 ∥ (𝑁 − 𝑅) ↔ ∃𝑧 ∈ ℤ ((𝑧 · 𝐷) + 𝑅) = 𝑁)) |
| 32 | 3, 6, 31 | 3bitr2d 216 | . 2 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → (𝑅 = (𝑁 mod 𝐷) ↔ ∃𝑧 ∈ ℤ ((𝑧 · 𝐷) + 𝑅) = 𝑁)) |
| 33 | 1, 32 | bitrid 192 | 1 ⊢ ((𝑁 ∈ ℤ ∧ 𝐷 ∈ ℕ ∧ (𝑅 ∈ ℕ0 ∧ 𝑅 < 𝐷)) → ((𝑁 mod 𝐷) = 𝑅 ↔ ∃𝑧 ∈ ℤ ((𝑧 · 𝐷) + 𝑅) = 𝑁)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 ∧ w3a 1004 = wceq 1397 ∈ wcel 2202 ∃wrex 2511 class class class wbr 4088 (class class class)co 6018 ℂcc 8030 + caddc 8035 · cmul 8037 < clt 8214 − cmin 8350 ℕcn 9143 ℕ0cn0 9402 ℤcz 9479 mod cmo 10585 ∥ cdvds 12353 |
| 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-nul 4215 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-iinf 4686 ax-cnex 8123 ax-resscn 8124 ax-1cn 8125 ax-1re 8126 ax-icn 8127 ax-addcl 8128 ax-addrcl 8129 ax-mulcl 8130 ax-mulrcl 8131 ax-addcom 8132 ax-mulcom 8133 ax-addass 8134 ax-mulass 8135 ax-distr 8136 ax-i2m1 8137 ax-0lt1 8138 ax-1rid 8139 ax-0id 8140 ax-rnegex 8141 ax-precex 8142 ax-cnre 8143 ax-pre-ltirr 8144 ax-pre-ltwlin 8145 ax-pre-lttrn 8146 ax-pre-apti 8147 ax-pre-ltadd 8148 ax-pre-mulgt0 8149 ax-pre-mulext 8150 ax-arch 8151 |
| This theorem depends on definitions: df-bi 117 df-dc 842 df-3or 1005 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-nel 2498 df-ral 2515 df-rex 2516 df-reu 2517 df-rmo 2518 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-nul 3495 df-if 3606 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-tr 4188 df-id 4390 df-po 4393 df-iso 4394 df-iord 4463 df-on 4465 df-ilim 4466 df-suc 4468 df-iom 4689 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 5971 df-ov 6021 df-oprab 6022 df-mpo 6023 df-1st 6303 df-2nd 6304 df-recs 6471 df-frec 6557 df-pnf 8216 df-mnf 8217 df-xr 8218 df-ltxr 8219 df-le 8220 df-sub 8352 df-neg 8353 df-reap 8755 df-ap 8762 df-div 8853 df-inn 9144 df-2 9202 df-n0 9403 df-z 9480 df-uz 9756 df-q 9854 df-rp 9889 df-fl 10531 df-mod 10586 df-seqfrec 10711 df-exp 10802 df-cj 11407 df-re 11408 df-im 11409 df-rsqrt 11563 df-abs 11564 df-dvds 12354 |
| This theorem is referenced by: bezoutlemnewy 12572 bezoutlemstep 12573 |
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