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| Mirrors > Home > ILE Home > Th. List > lt2addnq | GIF version | ||
| Description: Ordering property of addition for positive fractions. (Contributed by Jim Kingdon, 7-Dec-2019.) |
| Ref | Expression |
|---|---|
| lt2addnq | ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → ((𝐴 <Q 𝐵 ∧ 𝐶 <Q 𝐷) → (𝐴 +Q 𝐶) <Q (𝐵 +Q 𝐷))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltanqg 7720 | . . . . . 6 ⊢ ((𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q) → (𝐴 <Q 𝐵 ↔ (𝐶 +Q 𝐴) <Q (𝐶 +Q 𝐵))) | |
| 2 | 1 | 3expa 1230 | . . . . 5 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ 𝐶 ∈ Q) → (𝐴 <Q 𝐵 ↔ (𝐶 +Q 𝐴) <Q (𝐶 +Q 𝐵))) |
| 3 | 2 | adantrr 479 | . . . 4 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → (𝐴 <Q 𝐵 ↔ (𝐶 +Q 𝐴) <Q (𝐶 +Q 𝐵))) |
| 4 | addcomnqg 7701 | . . . . . . 7 ⊢ ((𝐶 ∈ Q ∧ 𝐴 ∈ Q) → (𝐶 +Q 𝐴) = (𝐴 +Q 𝐶)) | |
| 5 | 4 | ancoms 268 | . . . . . 6 ⊢ ((𝐴 ∈ Q ∧ 𝐶 ∈ Q) → (𝐶 +Q 𝐴) = (𝐴 +Q 𝐶)) |
| 6 | 5 | ad2ant2r 509 | . . . . 5 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → (𝐶 +Q 𝐴) = (𝐴 +Q 𝐶)) |
| 7 | addcomnqg 7701 | . . . . . . 7 ⊢ ((𝐶 ∈ Q ∧ 𝐵 ∈ Q) → (𝐶 +Q 𝐵) = (𝐵 +Q 𝐶)) | |
| 8 | 7 | ancoms 268 | . . . . . 6 ⊢ ((𝐵 ∈ Q ∧ 𝐶 ∈ Q) → (𝐶 +Q 𝐵) = (𝐵 +Q 𝐶)) |
| 9 | 8 | ad2ant2lr 510 | . . . . 5 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → (𝐶 +Q 𝐵) = (𝐵 +Q 𝐶)) |
| 10 | 6, 9 | breq12d 4124 | . . . 4 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → ((𝐶 +Q 𝐴) <Q (𝐶 +Q 𝐵) ↔ (𝐴 +Q 𝐶) <Q (𝐵 +Q 𝐶))) |
| 11 | 3, 10 | bitrd 188 | . . 3 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → (𝐴 <Q 𝐵 ↔ (𝐴 +Q 𝐶) <Q (𝐵 +Q 𝐶))) |
| 12 | ltanqg 7720 | . . . . . 6 ⊢ ((𝐶 ∈ Q ∧ 𝐷 ∈ Q ∧ 𝐵 ∈ Q) → (𝐶 <Q 𝐷 ↔ (𝐵 +Q 𝐶) <Q (𝐵 +Q 𝐷))) | |
| 13 | 12 | 3expa 1230 | . . . . 5 ⊢ (((𝐶 ∈ Q ∧ 𝐷 ∈ Q) ∧ 𝐵 ∈ Q) → (𝐶 <Q 𝐷 ↔ (𝐵 +Q 𝐶) <Q (𝐵 +Q 𝐷))) |
| 14 | 13 | ancoms 268 | . . . 4 ⊢ ((𝐵 ∈ Q ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → (𝐶 <Q 𝐷 ↔ (𝐵 +Q 𝐶) <Q (𝐵 +Q 𝐷))) |
| 15 | 14 | adantll 476 | . . 3 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → (𝐶 <Q 𝐷 ↔ (𝐵 +Q 𝐶) <Q (𝐵 +Q 𝐷))) |
| 16 | 11, 15 | anbi12d 473 | . 2 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → ((𝐴 <Q 𝐵 ∧ 𝐶 <Q 𝐷) ↔ ((𝐴 +Q 𝐶) <Q (𝐵 +Q 𝐶) ∧ (𝐵 +Q 𝐶) <Q (𝐵 +Q 𝐷)))) |
| 17 | ltsonq 7718 | . . 3 ⊢ <Q Or Q | |
| 18 | ltrelnq 7685 | . . 3 ⊢ <Q ⊆ (Q × Q) | |
| 19 | 17, 18 | sotri 5160 | . 2 ⊢ (((𝐴 +Q 𝐶) <Q (𝐵 +Q 𝐶) ∧ (𝐵 +Q 𝐶) <Q (𝐵 +Q 𝐷)) → (𝐴 +Q 𝐶) <Q (𝐵 +Q 𝐷)) |
| 20 | 16, 19 | biimtrdi 163 | 1 ⊢ (((𝐴 ∈ Q ∧ 𝐵 ∈ Q) ∧ (𝐶 ∈ Q ∧ 𝐷 ∈ Q)) → ((𝐴 <Q 𝐵 ∧ 𝐶 <Q 𝐷) → (𝐴 +Q 𝐶) <Q (𝐵 +Q 𝐷))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1398 ∈ wcel 2205 class class class wbr 4111 (class class class)co 6052 Qcnq 7600 +Q cplq 7602 <Q cltq 7605 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-coll 4227 ax-sep 4230 ax-nul 4238 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-setind 4661 ax-iinf 4712 |
| This theorem depends on definitions: df-bi 117 df-dc 843 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-rab 2531 df-v 2817 df-sbc 3045 df-csb 3141 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-nul 3511 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-iun 3995 df-br 4112 df-opab 4174 df-mpt 4175 df-tr 4211 df-eprel 4412 df-id 4416 df-po 4419 df-iso 4420 df-iord 4489 df-on 4491 df-suc 4494 df-iom 4715 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-ima 4764 df-iota 5314 df-fun 5356 df-fn 5357 df-f 5358 df-f1 5359 df-fo 5360 df-f1o 5361 df-fv 5362 df-ov 6055 df-oprab 6056 df-mpo 6057 df-1st 6336 df-2nd 6337 df-recs 6538 df-irdg 6603 df-oadd 6653 df-omul 6654 df-er 6769 df-ec 6771 df-qs 6775 df-ni 7624 df-pli 7625 df-mi 7626 df-lti 7627 df-plpq 7664 df-enq 7667 df-nqqs 7668 df-plqqs 7669 df-ltnqqs 7673 |
| This theorem is referenced by: addlocprlemeqgt 7852 addnqprlemrl 7877 addnqprlemru 7878 cauappcvgprlemladdfl 7975 caucvgprlemloc 7995 caucvgprprlemloccalc 8004 |
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