![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > modqabs | GIF version |
Description: Absorption law for modulo. (Contributed by Jim Kingdon, 21-Oct-2021.) |
Ref | Expression |
---|---|
modqabs.a | ⊢ (𝜑 → 𝐴 ∈ ℚ) |
modqabs.b | ⊢ (𝜑 → 𝐵 ∈ ℚ) |
modqabs.bgt0 | ⊢ (𝜑 → 0 < 𝐵) |
modqabs.c | ⊢ (𝜑 → 𝐶 ∈ ℚ) |
modqabs.bc | ⊢ (𝜑 → 𝐵 ≤ 𝐶) |
Ref | Expression |
---|---|
modqabs | ⊢ (𝜑 → ((𝐴 mod 𝐵) mod 𝐶) = (𝐴 mod 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | modqabs.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℚ) | |
2 | modqabs.b | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℚ) | |
3 | modqabs.bgt0 | . . 3 ⊢ (𝜑 → 0 < 𝐵) | |
4 | 1, 2, 3 | modqcld 10331 | . 2 ⊢ (𝜑 → (𝐴 mod 𝐵) ∈ ℚ) |
5 | modqabs.c | . 2 ⊢ (𝜑 → 𝐶 ∈ ℚ) | |
6 | modqge0 10335 | . . 3 ⊢ ((𝐴 ∈ ℚ ∧ 𝐵 ∈ ℚ ∧ 0 < 𝐵) → 0 ≤ (𝐴 mod 𝐵)) | |
7 | 1, 2, 3, 6 | syl3anc 1238 | . 2 ⊢ (𝜑 → 0 ≤ (𝐴 mod 𝐵)) |
8 | qre 9628 | . . . 4 ⊢ ((𝐴 mod 𝐵) ∈ ℚ → (𝐴 mod 𝐵) ∈ ℝ) | |
9 | 4, 8 | syl 14 | . . 3 ⊢ (𝜑 → (𝐴 mod 𝐵) ∈ ℝ) |
10 | qre 9628 | . . . 4 ⊢ (𝐵 ∈ ℚ → 𝐵 ∈ ℝ) | |
11 | 2, 10 | syl 14 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) |
12 | qre 9628 | . . . 4 ⊢ (𝐶 ∈ ℚ → 𝐶 ∈ ℝ) | |
13 | 5, 12 | syl 14 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ) |
14 | modqlt 10336 | . . . 4 ⊢ ((𝐴 ∈ ℚ ∧ 𝐵 ∈ ℚ ∧ 0 < 𝐵) → (𝐴 mod 𝐵) < 𝐵) | |
15 | 1, 2, 3, 14 | syl3anc 1238 | . . 3 ⊢ (𝜑 → (𝐴 mod 𝐵) < 𝐵) |
16 | modqabs.bc | . . 3 ⊢ (𝜑 → 𝐵 ≤ 𝐶) | |
17 | 9, 11, 13, 15, 16 | ltletrd 8383 | . 2 ⊢ (𝜑 → (𝐴 mod 𝐵) < 𝐶) |
18 | modqid 10352 | . 2 ⊢ ((((𝐴 mod 𝐵) ∈ ℚ ∧ 𝐶 ∈ ℚ) ∧ (0 ≤ (𝐴 mod 𝐵) ∧ (𝐴 mod 𝐵) < 𝐶)) → ((𝐴 mod 𝐵) mod 𝐶) = (𝐴 mod 𝐵)) | |
19 | 4, 5, 7, 17, 18 | syl22anc 1239 | 1 ⊢ (𝜑 → ((𝐴 mod 𝐵) mod 𝐶) = (𝐴 mod 𝐵)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1353 ∈ wcel 2148 class class class wbr 4005 (class class class)co 5878 ℝcr 7813 0cc0 7814 < clt 7995 ≤ cle 7996 ℚcq 9622 mod cmo 10325 |
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 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4123 ax-pow 4176 ax-pr 4211 ax-un 4435 ax-setind 4538 ax-cnex 7905 ax-resscn 7906 ax-1cn 7907 ax-1re 7908 ax-icn 7909 ax-addcl 7910 ax-addrcl 7911 ax-mulcl 7912 ax-mulrcl 7913 ax-addcom 7914 ax-mulcom 7915 ax-addass 7916 ax-mulass 7917 ax-distr 7918 ax-i2m1 7919 ax-0lt1 7920 ax-1rid 7921 ax-0id 7922 ax-rnegex 7923 ax-precex 7924 ax-cnre 7925 ax-pre-ltirr 7926 ax-pre-ltwlin 7927 ax-pre-lttrn 7928 ax-pre-apti 7929 ax-pre-ltadd 7930 ax-pre-mulgt0 7931 ax-pre-mulext 7932 ax-arch 7933 |
This theorem depends on definitions: df-bi 117 df-3or 979 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-nel 2443 df-ral 2460 df-rex 2461 df-reu 2462 df-rmo 2463 df-rab 2464 df-v 2741 df-sbc 2965 df-csb 3060 df-dif 3133 df-un 3135 df-in 3137 df-ss 3144 df-pw 3579 df-sn 3600 df-pr 3601 df-op 3603 df-uni 3812 df-int 3847 df-iun 3890 df-br 4006 df-opab 4067 df-mpt 4068 df-id 4295 df-po 4298 df-iso 4299 df-xp 4634 df-rel 4635 df-cnv 4636 df-co 4637 df-dm 4638 df-rn 4639 df-res 4640 df-ima 4641 df-iota 5180 df-fun 5220 df-fn 5221 df-f 5222 df-fv 5226 df-riota 5834 df-ov 5881 df-oprab 5882 df-mpo 5883 df-1st 6144 df-2nd 6145 df-pnf 7997 df-mnf 7998 df-xr 7999 df-ltxr 8000 df-le 8001 df-sub 8133 df-neg 8134 df-reap 8535 df-ap 8542 df-div 8633 df-inn 8923 df-n0 9180 df-z 9257 df-q 9623 df-rp 9657 df-fl 10273 df-mod 10326 |
This theorem is referenced by: modqabs2 10361 |
Copyright terms: Public domain | W3C validator |