| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > 0lt1sr | GIF version | ||
| Description: 0 is less than 1 for signed reals. (Contributed by NM, 26-Mar-1996.) |
| Ref | Expression |
|---|---|
| 0lt1sr | ⊢ 0R <R 1R |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1pr 7621 | . . . . . 6 ⊢ 1P ∈ P | |
| 2 | addclpr 7604 | . . . . . 6 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 426 | . . . . 5 ⊢ (1P +P 1P) ∈ P |
| 4 | ltaddpr 7664 | . . . . 5 ⊢ (((1P +P 1P) ∈ P ∧ 1P ∈ P) → (1P +P 1P)<P ((1P +P 1P) +P 1P)) | |
| 5 | 3, 1, 4 | mp2an 426 | . . . 4 ⊢ (1P +P 1P)<P ((1P +P 1P) +P 1P) |
| 6 | addcomprg 7645 | . . . . 5 ⊢ ((1P ∈ P ∧ (1P +P 1P) ∈ P) → (1P +P (1P +P 1P)) = ((1P +P 1P) +P 1P)) | |
| 7 | 1, 3, 6 | mp2an 426 | . . . 4 ⊢ (1P +P (1P +P 1P)) = ((1P +P 1P) +P 1P) |
| 8 | 5, 7 | breqtrri 4060 | . . 3 ⊢ (1P +P 1P)<P (1P +P (1P +P 1P)) |
| 9 | ltsrprg 7814 | . . . 4 ⊢ (((1P ∈ P ∧ 1P ∈ P) ∧ ((1P +P 1P) ∈ P ∧ 1P ∈ P)) → ([〈1P, 1P〉] ~R <R [〈(1P +P 1P), 1P〉] ~R ↔ (1P +P 1P)<P (1P +P (1P +P 1P)))) | |
| 10 | 1, 1, 3, 1, 9 | mp4an 427 | . . 3 ⊢ ([〈1P, 1P〉] ~R <R [〈(1P +P 1P), 1P〉] ~R ↔ (1P +P 1P)<P (1P +P (1P +P 1P))) |
| 11 | 8, 10 | mpbir 146 | . 2 ⊢ [〈1P, 1P〉] ~R <R [〈(1P +P 1P), 1P〉] ~R |
| 12 | df-0r 7798 | . 2 ⊢ 0R = [〈1P, 1P〉] ~R | |
| 13 | df-1r 7799 | . 2 ⊢ 1R = [〈(1P +P 1P), 1P〉] ~R | |
| 14 | 11, 12, 13 | 3brtr4i 4063 | 1 ⊢ 0R <R 1R |
| Colors of variables: wff set class |
| Syntax hints: ↔ wb 105 = wceq 1364 ∈ wcel 2167 〈cop 3625 class class class wbr 4033 (class class class)co 5922 [cec 6590 Pcnp 7358 1Pc1p 7359 +P cpp 7360 <P cltp 7362 ~R cer 7363 0Rc0r 7365 1Rc1r 7366 <R cltr 7370 |
| 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 4148 ax-sep 4151 ax-nul 4159 ax-pow 4207 ax-pr 4242 ax-un 4468 ax-setind 4573 ax-iinf 4624 |
| 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 3451 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-int 3875 df-iun 3918 df-br 4034 df-opab 4095 df-mpt 4096 df-tr 4132 df-eprel 4324 df-id 4328 df-po 4331 df-iso 4332 df-iord 4401 df-on 4403 df-suc 4406 df-iom 4627 df-xp 4669 df-rel 4670 df-cnv 4671 df-co 4672 df-dm 4673 df-rn 4674 df-res 4675 df-ima 4676 df-iota 5219 df-fun 5260 df-fn 5261 df-f 5262 df-f1 5263 df-fo 5264 df-f1o 5265 df-fv 5266 df-ov 5925 df-oprab 5926 df-mpo 5927 df-1st 6198 df-2nd 6199 df-recs 6363 df-irdg 6428 df-1o 6474 df-2o 6475 df-oadd 6478 df-omul 6479 df-er 6592 df-ec 6594 df-qs 6598 df-ni 7371 df-pli 7372 df-mi 7373 df-lti 7374 df-plpq 7411 df-mpq 7412 df-enq 7414 df-nqqs 7415 df-plqqs 7416 df-mqqs 7417 df-1nqqs 7418 df-rq 7419 df-ltnqqs 7420 df-enq0 7491 df-nq0 7492 df-0nq0 7493 df-plq0 7494 df-mq0 7495 df-inp 7533 df-i1p 7534 df-iplp 7535 df-iltp 7537 df-enr 7793 df-nr 7794 df-ltr 7797 df-0r 7798 df-1r 7799 |
| This theorem is referenced by: 1ne0sr 7833 ltadd1sr 7843 caucvgsrlemcl 7856 caucvgsrlemfv 7858 suplocsrlempr 7874 ax0lt1 7943 |
| Copyright terms: Public domain | W3C validator |