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| Mirrors > Home > ILE Home > Th. List > addextpr | GIF version | ||
| Description: Strong extensionality of addition (ordering version). This is similar to addext 8654 but for positive reals and based on less-than rather than apartness. (Contributed by Jim Kingdon, 17-Feb-2020.) |
| Ref | Expression |
|---|---|
| addextpr | ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐷) → (𝐴<P 𝐶 ∨ 𝐵<P 𝐷))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addclpr 7621 | . . . 4 ⊢ ((𝐴 ∈ P ∧ 𝐵 ∈ P) → (𝐴 +P 𝐵) ∈ P) | |
| 2 | 1 | adantr 276 | . . 3 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (𝐴 +P 𝐵) ∈ P) |
| 3 | addclpr 7621 | . . . 4 ⊢ ((𝐶 ∈ P ∧ 𝐷 ∈ P) → (𝐶 +P 𝐷) ∈ P) | |
| 4 | 3 | adantl 277 | . . 3 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (𝐶 +P 𝐷) ∈ P) |
| 5 | simprl 529 | . . . 4 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → 𝐶 ∈ P) | |
| 6 | simplr 528 | . . . 4 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → 𝐵 ∈ P) | |
| 7 | addclpr 7621 | . . . 4 ⊢ ((𝐶 ∈ P ∧ 𝐵 ∈ P) → (𝐶 +P 𝐵) ∈ P) | |
| 8 | 5, 6, 7 | syl2anc 411 | . . 3 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (𝐶 +P 𝐵) ∈ P) |
| 9 | ltsopr 7680 | . . . 4 ⊢ <P Or P | |
| 10 | sowlin 4356 | . . . 4 ⊢ ((<P Or P ∧ ((𝐴 +P 𝐵) ∈ P ∧ (𝐶 +P 𝐷) ∈ P ∧ (𝐶 +P 𝐵) ∈ P)) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐷) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐵) ∨ (𝐶 +P 𝐵)<P (𝐶 +P 𝐷)))) | |
| 11 | 9, 10 | mpan 424 | . . 3 ⊢ (((𝐴 +P 𝐵) ∈ P ∧ (𝐶 +P 𝐷) ∈ P ∧ (𝐶 +P 𝐵) ∈ P) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐷) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐵) ∨ (𝐶 +P 𝐵)<P (𝐶 +P 𝐷)))) |
| 12 | 2, 4, 8, 11 | syl3anc 1249 | . 2 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐷) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐵) ∨ (𝐶 +P 𝐵)<P (𝐶 +P 𝐷)))) |
| 13 | simpll 527 | . . . . 5 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → 𝐴 ∈ P) | |
| 14 | ltaprg 7703 | . . . . 5 ⊢ ((𝐴 ∈ P ∧ 𝐶 ∈ P ∧ 𝐵 ∈ P) → (𝐴<P 𝐶 ↔ (𝐵 +P 𝐴)<P (𝐵 +P 𝐶))) | |
| 15 | 13, 5, 6, 14 | syl3anc 1249 | . . . 4 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (𝐴<P 𝐶 ↔ (𝐵 +P 𝐴)<P (𝐵 +P 𝐶))) |
| 16 | addcomprg 7662 | . . . . . . 7 ⊢ ((𝑓 ∈ P ∧ 𝑔 ∈ P) → (𝑓 +P 𝑔) = (𝑔 +P 𝑓)) | |
| 17 | 16 | adantl 277 | . . . . . 6 ⊢ ((((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) ∧ (𝑓 ∈ P ∧ 𝑔 ∈ P)) → (𝑓 +P 𝑔) = (𝑔 +P 𝑓)) |
| 18 | 17, 13, 6 | caovcomd 6084 | . . . . 5 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (𝐴 +P 𝐵) = (𝐵 +P 𝐴)) |
| 19 | 17, 5, 6 | caovcomd 6084 | . . . . 5 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (𝐶 +P 𝐵) = (𝐵 +P 𝐶)) |
| 20 | 18, 19 | breq12d 4047 | . . . 4 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐵) ↔ (𝐵 +P 𝐴)<P (𝐵 +P 𝐶))) |
| 21 | 15, 20 | bitr4d 191 | . . 3 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (𝐴<P 𝐶 ↔ (𝐴 +P 𝐵)<P (𝐶 +P 𝐵))) |
| 22 | simprr 531 | . . . 4 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → 𝐷 ∈ P) | |
| 23 | ltaprg 7703 | . . . 4 ⊢ ((𝐵 ∈ P ∧ 𝐷 ∈ P ∧ 𝐶 ∈ P) → (𝐵<P 𝐷 ↔ (𝐶 +P 𝐵)<P (𝐶 +P 𝐷))) | |
| 24 | 6, 22, 5, 23 | syl3anc 1249 | . . 3 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (𝐵<P 𝐷 ↔ (𝐶 +P 𝐵)<P (𝐶 +P 𝐷))) |
| 25 | 21, 24 | orbi12d 794 | . 2 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → ((𝐴<P 𝐶 ∨ 𝐵<P 𝐷) ↔ ((𝐴 +P 𝐵)<P (𝐶 +P 𝐵) ∨ (𝐶 +P 𝐵)<P (𝐶 +P 𝐷)))) |
| 26 | 12, 25 | sylibrd 169 | 1 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → ((𝐴 +P 𝐵)<P (𝐶 +P 𝐷) → (𝐴<P 𝐶 ∨ 𝐵<P 𝐷))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 ∨ wo 709 ∧ w3a 980 = wceq 1364 ∈ wcel 2167 class class class wbr 4034 Or wor 4331 (class class class)co 5925 Pcnp 7375 +P cpp 7377 <P cltp 7379 |
| 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 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-coll 4149 ax-sep 4152 ax-nul 4160 ax-pow 4208 ax-pr 4243 ax-un 4469 ax-setind 4574 ax-iinf 4625 |
| This theorem depends on definitions: df-bi 117 df-dc 836 df-3or 981 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-ral 2480 df-rex 2481 df-reu 2482 df-rab 2484 df-v 2765 df-sbc 2990 df-csb 3085 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-nul 3452 df-pw 3608 df-sn 3629 df-pr 3630 df-op 3632 df-uni 3841 df-int 3876 df-iun 3919 df-br 4035 df-opab 4096 df-mpt 4097 df-tr 4133 df-eprel 4325 df-id 4329 df-po 4332 df-iso 4333 df-iord 4402 df-on 4404 df-suc 4407 df-iom 4628 df-xp 4670 df-rel 4671 df-cnv 4672 df-co 4673 df-dm 4674 df-rn 4675 df-res 4676 df-ima 4677 df-iota 5220 df-fun 5261 df-fn 5262 df-f 5263 df-f1 5264 df-fo 5265 df-f1o 5266 df-fv 5267 df-ov 5928 df-oprab 5929 df-mpo 5930 df-1st 6207 df-2nd 6208 df-recs 6372 df-irdg 6437 df-1o 6483 df-2o 6484 df-oadd 6487 df-omul 6488 df-er 6601 df-ec 6603 df-qs 6607 df-ni 7388 df-pli 7389 df-mi 7390 df-lti 7391 df-plpq 7428 df-mpq 7429 df-enq 7431 df-nqqs 7432 df-plqqs 7433 df-mqqs 7434 df-1nqqs 7435 df-rq 7436 df-ltnqqs 7437 df-enq0 7508 df-nq0 7509 df-0nq0 7510 df-plq0 7511 df-mq0 7512 df-inp 7550 df-iplp 7552 df-iltp 7554 |
| This theorem is referenced by: mulextsr1lem 7864 |
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