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Mirrors > Home > ILE Home > Th. List > gt0srpr | GIF version |
Description: Greater than zero in terms of positive reals. (Contributed by NM, 13-May-1996.) |
Ref | Expression |
---|---|
gt0srpr | ⊢ (0R <R [〈𝐴, 𝐵〉] ~R ↔ 𝐵<P 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | enrer 7697 | . . . . 5 ⊢ ~R Er (P × P) | |
2 | erdm 6523 | . . . . 5 ⊢ ( ~R Er (P × P) → dom ~R = (P × P)) | |
3 | 1, 2 | ax-mp 5 | . . . 4 ⊢ dom ~R = (P × P) |
4 | ltrelsr 7700 | . . . . . . 7 ⊢ <R ⊆ (R × R) | |
5 | 4 | brel 4663 | . . . . . 6 ⊢ (0R <R [〈𝐴, 𝐵〉] ~R → (0R ∈ R ∧ [〈𝐴, 𝐵〉] ~R ∈ R)) |
6 | 5 | simprd 113 | . . . . 5 ⊢ (0R <R [〈𝐴, 𝐵〉] ~R → [〈𝐴, 𝐵〉] ~R ∈ R) |
7 | df-nr 7689 | . . . . 5 ⊢ R = ((P × P) / ~R ) | |
8 | 6, 7 | eleqtrdi 2263 | . . . 4 ⊢ (0R <R [〈𝐴, 𝐵〉] ~R → [〈𝐴, 𝐵〉] ~R ∈ ((P × P) / ~R )) |
9 | ecelqsdm 6583 | . . . 4 ⊢ ((dom ~R = (P × P) ∧ [〈𝐴, 𝐵〉] ~R ∈ ((P × P) / ~R )) → 〈𝐴, 𝐵〉 ∈ (P × P)) | |
10 | 3, 8, 9 | sylancr 412 | . . 3 ⊢ (0R <R [〈𝐴, 𝐵〉] ~R → 〈𝐴, 𝐵〉 ∈ (P × P)) |
11 | opelxp 4641 | . . 3 ⊢ (〈𝐴, 𝐵〉 ∈ (P × P) ↔ (𝐴 ∈ P ∧ 𝐵 ∈ P)) | |
12 | 10, 11 | sylib 121 | . 2 ⊢ (0R <R [〈𝐴, 𝐵〉] ~R → (𝐴 ∈ P ∧ 𝐵 ∈ P)) |
13 | ltrelpr 7467 | . . . 4 ⊢ <P ⊆ (P × P) | |
14 | 13 | brel 4663 | . . 3 ⊢ (𝐵<P 𝐴 → (𝐵 ∈ P ∧ 𝐴 ∈ P)) |
15 | 14 | ancomd 265 | . 2 ⊢ (𝐵<P 𝐴 → (𝐴 ∈ P ∧ 𝐵 ∈ P)) |
16 | df-0r 7693 | . . . . 5 ⊢ 0R = [〈1P, 1P〉] ~R | |
17 | 16 | breq1i 3996 | . . . 4 ⊢ (0R <R [〈𝐴, 𝐵〉] ~R ↔ [〈1P, 1P〉] ~R <R [〈𝐴, 𝐵〉] ~R ) |
18 | 1pr 7516 | . . . . 5 ⊢ 1P ∈ P | |
19 | ltsrprg 7709 | . . . . 5 ⊢ (((1P ∈ P ∧ 1P ∈ P) ∧ (𝐴 ∈ P ∧ 𝐵 ∈ P)) → ([〈1P, 1P〉] ~R <R [〈𝐴, 𝐵〉] ~R ↔ (1P +P 𝐵)<P (1P +P 𝐴))) | |
20 | 18, 18, 19 | mpanl12 434 | . . . 4 ⊢ ((𝐴 ∈ P ∧ 𝐵 ∈ P) → ([〈1P, 1P〉] ~R <R [〈𝐴, 𝐵〉] ~R ↔ (1P +P 𝐵)<P (1P +P 𝐴))) |
21 | 17, 20 | syl5bb 191 | . . 3 ⊢ ((𝐴 ∈ P ∧ 𝐵 ∈ P) → (0R <R [〈𝐴, 𝐵〉] ~R ↔ (1P +P 𝐵)<P (1P +P 𝐴))) |
22 | ltaprg 7581 | . . . . 5 ⊢ ((𝐵 ∈ P ∧ 𝐴 ∈ P ∧ 1P ∈ P) → (𝐵<P 𝐴 ↔ (1P +P 𝐵)<P (1P +P 𝐴))) | |
23 | 18, 22 | mp3an3 1321 | . . . 4 ⊢ ((𝐵 ∈ P ∧ 𝐴 ∈ P) → (𝐵<P 𝐴 ↔ (1P +P 𝐵)<P (1P +P 𝐴))) |
24 | 23 | ancoms 266 | . . 3 ⊢ ((𝐴 ∈ P ∧ 𝐵 ∈ P) → (𝐵<P 𝐴 ↔ (1P +P 𝐵)<P (1P +P 𝐴))) |
25 | 21, 24 | bitr4d 190 | . 2 ⊢ ((𝐴 ∈ P ∧ 𝐵 ∈ P) → (0R <R [〈𝐴, 𝐵〉] ~R ↔ 𝐵<P 𝐴)) |
26 | 12, 15, 25 | pm5.21nii 699 | 1 ⊢ (0R <R [〈𝐴, 𝐵〉] ~R ↔ 𝐵<P 𝐴) |
Colors of variables: wff set class |
Syntax hints: ∧ wa 103 ↔ wb 104 = wceq 1348 ∈ wcel 2141 〈cop 3586 class class class wbr 3989 × cxp 4609 dom cdm 4611 (class class class)co 5853 Er wer 6510 [cec 6511 / cqs 6512 Pcnp 7253 1Pc1p 7254 +P cpp 7255 <P cltp 7257 ~R cer 7258 Rcnr 7259 0Rc0r 7260 <R cltr 7265 |
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 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-coll 4104 ax-sep 4107 ax-nul 4115 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 ax-iinf 4572 |
This theorem depends on definitions: df-bi 116 df-dc 830 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-ral 2453 df-rex 2454 df-reu 2455 df-rab 2457 df-v 2732 df-sbc 2956 df-csb 3050 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-nul 3415 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-iun 3875 df-br 3990 df-opab 4051 df-mpt 4052 df-tr 4088 df-eprel 4274 df-id 4278 df-po 4281 df-iso 4282 df-iord 4351 df-on 4353 df-suc 4356 df-iom 4575 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-f1 5203 df-fo 5204 df-f1o 5205 df-fv 5206 df-ov 5856 df-oprab 5857 df-mpo 5858 df-1st 6119 df-2nd 6120 df-recs 6284 df-irdg 6349 df-1o 6395 df-2o 6396 df-oadd 6399 df-omul 6400 df-er 6513 df-ec 6515 df-qs 6519 df-ni 7266 df-pli 7267 df-mi 7268 df-lti 7269 df-plpq 7306 df-mpq 7307 df-enq 7309 df-nqqs 7310 df-plqqs 7311 df-mqqs 7312 df-1nqqs 7313 df-rq 7314 df-ltnqqs 7315 df-enq0 7386 df-nq0 7387 df-0nq0 7388 df-plq0 7389 df-mq0 7390 df-inp 7428 df-i1p 7429 df-iplp 7430 df-iltp 7432 df-enr 7688 df-nr 7689 df-ltr 7692 df-0r 7693 |
This theorem is referenced by: recexgt0sr 7735 mulgt0sr 7740 srpospr 7745 prsrpos 7747 |
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