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Mirrors > Home > ILE Home > Th. List > ltapig | GIF version |
Description: Ordering property of addition for positive integers. (Contributed by Jim Kingdon, 31-Aug-2019.) |
Ref | Expression |
---|---|
ltapig | ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → (𝐴 <N 𝐵 ↔ (𝐶 +N 𝐴) <N (𝐶 +N 𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pinn 7208 | . . . . 5 ⊢ (𝐴 ∈ N → 𝐴 ∈ ω) | |
2 | pinn 7208 | . . . . 5 ⊢ (𝐵 ∈ N → 𝐵 ∈ ω) | |
3 | pinn 7208 | . . . . 5 ⊢ (𝐶 ∈ N → 𝐶 ∈ ω) | |
4 | nnaord 6445 | . . . . 5 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ ω ∧ 𝐶 ∈ ω) → (𝐴 ∈ 𝐵 ↔ (𝐶 +o 𝐴) ∈ (𝐶 +o 𝐵))) | |
5 | 1, 2, 3, 4 | syl3an 1259 | . . . 4 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → (𝐴 ∈ 𝐵 ↔ (𝐶 +o 𝐴) ∈ (𝐶 +o 𝐵))) |
6 | 5 | 3expa 1182 | . . 3 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N) ∧ 𝐶 ∈ N) → (𝐴 ∈ 𝐵 ↔ (𝐶 +o 𝐴) ∈ (𝐶 +o 𝐵))) |
7 | ltpiord 7218 | . . . 4 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N) → (𝐴 <N 𝐵 ↔ 𝐴 ∈ 𝐵)) | |
8 | 7 | adantr 274 | . . 3 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N) ∧ 𝐶 ∈ N) → (𝐴 <N 𝐵 ↔ 𝐴 ∈ 𝐵)) |
9 | addclpi 7226 | . . . . . . 7 ⊢ ((𝐶 ∈ N ∧ 𝐴 ∈ N) → (𝐶 +N 𝐴) ∈ N) | |
10 | addclpi 7226 | . . . . . . 7 ⊢ ((𝐶 ∈ N ∧ 𝐵 ∈ N) → (𝐶 +N 𝐵) ∈ N) | |
11 | ltpiord 7218 | . . . . . . 7 ⊢ (((𝐶 +N 𝐴) ∈ N ∧ (𝐶 +N 𝐵) ∈ N) → ((𝐶 +N 𝐴) <N (𝐶 +N 𝐵) ↔ (𝐶 +N 𝐴) ∈ (𝐶 +N 𝐵))) | |
12 | 9, 10, 11 | syl2an 287 | . . . . . 6 ⊢ (((𝐶 ∈ N ∧ 𝐴 ∈ N) ∧ (𝐶 ∈ N ∧ 𝐵 ∈ N)) → ((𝐶 +N 𝐴) <N (𝐶 +N 𝐵) ↔ (𝐶 +N 𝐴) ∈ (𝐶 +N 𝐵))) |
13 | addpiord 7215 | . . . . . . . 8 ⊢ ((𝐶 ∈ N ∧ 𝐴 ∈ N) → (𝐶 +N 𝐴) = (𝐶 +o 𝐴)) | |
14 | 13 | adantr 274 | . . . . . . 7 ⊢ (((𝐶 ∈ N ∧ 𝐴 ∈ N) ∧ (𝐶 ∈ N ∧ 𝐵 ∈ N)) → (𝐶 +N 𝐴) = (𝐶 +o 𝐴)) |
15 | addpiord 7215 | . . . . . . . 8 ⊢ ((𝐶 ∈ N ∧ 𝐵 ∈ N) → (𝐶 +N 𝐵) = (𝐶 +o 𝐵)) | |
16 | 15 | adantl 275 | . . . . . . 7 ⊢ (((𝐶 ∈ N ∧ 𝐴 ∈ N) ∧ (𝐶 ∈ N ∧ 𝐵 ∈ N)) → (𝐶 +N 𝐵) = (𝐶 +o 𝐵)) |
17 | 14, 16 | eleq12d 2225 | . . . . . 6 ⊢ (((𝐶 ∈ N ∧ 𝐴 ∈ N) ∧ (𝐶 ∈ N ∧ 𝐵 ∈ N)) → ((𝐶 +N 𝐴) ∈ (𝐶 +N 𝐵) ↔ (𝐶 +o 𝐴) ∈ (𝐶 +o 𝐵))) |
18 | 12, 17 | bitrd 187 | . . . . 5 ⊢ (((𝐶 ∈ N ∧ 𝐴 ∈ N) ∧ (𝐶 ∈ N ∧ 𝐵 ∈ N)) → ((𝐶 +N 𝐴) <N (𝐶 +N 𝐵) ↔ (𝐶 +o 𝐴) ∈ (𝐶 +o 𝐵))) |
19 | 18 | anandis 582 | . . . 4 ⊢ ((𝐶 ∈ N ∧ (𝐴 ∈ N ∧ 𝐵 ∈ N)) → ((𝐶 +N 𝐴) <N (𝐶 +N 𝐵) ↔ (𝐶 +o 𝐴) ∈ (𝐶 +o 𝐵))) |
20 | 19 | ancoms 266 | . . 3 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N) ∧ 𝐶 ∈ N) → ((𝐶 +N 𝐴) <N (𝐶 +N 𝐵) ↔ (𝐶 +o 𝐴) ∈ (𝐶 +o 𝐵))) |
21 | 6, 8, 20 | 3bitr4d 219 | . 2 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N) ∧ 𝐶 ∈ N) → (𝐴 <N 𝐵 ↔ (𝐶 +N 𝐴) <N (𝐶 +N 𝐵))) |
22 | 21 | 3impa 1177 | 1 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → (𝐴 <N 𝐵 ↔ (𝐶 +N 𝐴) <N (𝐶 +N 𝐵))) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ↔ wb 104 ∧ w3a 963 = wceq 1332 ∈ wcel 2125 class class class wbr 3961 ωcom 4543 (class class class)co 5814 +o coa 6350 Ncnpi 7171 +N cpli 7172 <N clti 7174 |
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 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1481 ax-10 1482 ax-11 1483 ax-i12 1484 ax-bndl 1486 ax-4 1487 ax-17 1503 ax-i9 1507 ax-ial 1511 ax-i5r 1512 ax-13 2127 ax-14 2128 ax-ext 2136 ax-coll 4075 ax-sep 4078 ax-nul 4086 ax-pow 4130 ax-pr 4164 ax-un 4388 ax-setind 4490 ax-iinf 4541 |
This theorem depends on definitions: df-bi 116 df-dc 821 df-3or 964 df-3an 965 df-tru 1335 df-fal 1338 df-nf 1438 df-sb 1740 df-eu 2006 df-mo 2007 df-clab 2141 df-cleq 2147 df-clel 2150 df-nfc 2285 df-ne 2325 df-ral 2437 df-rex 2438 df-reu 2439 df-rab 2441 df-v 2711 df-sbc 2934 df-csb 3028 df-dif 3100 df-un 3102 df-in 3104 df-ss 3111 df-nul 3391 df-pw 3541 df-sn 3562 df-pr 3563 df-op 3565 df-uni 3769 df-int 3804 df-iun 3847 df-br 3962 df-opab 4022 df-mpt 4023 df-tr 4059 df-eprel 4244 df-id 4248 df-iord 4321 df-on 4323 df-suc 4326 df-iom 4544 df-xp 4585 df-rel 4586 df-cnv 4587 df-co 4588 df-dm 4589 df-rn 4590 df-res 4591 df-ima 4592 df-iota 5128 df-fun 5165 df-fn 5166 df-f 5167 df-f1 5168 df-fo 5169 df-f1o 5170 df-fv 5171 df-ov 5817 df-oprab 5818 df-mpo 5819 df-1st 6078 df-2nd 6079 df-recs 6242 df-irdg 6307 df-oadd 6357 df-ni 7203 df-pli 7204 df-lti 7206 |
This theorem is referenced by: ltanqg 7299 |
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