| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > 0lt1sr | Structured version Visualization version GIF version | ||
| Description: 0 is less than 1 for signed reals. (Contributed by NM, 26-Mar-1996.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| 0lt1sr | ⊢ 0R <R 1R |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1pr 11027 | . . . . . 6 ⊢ 1P ∈ P | |
| 2 | addclpr 11030 | . . . . . 6 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 705 | . . . . 5 ⊢ (1P +P 1P) ∈ P |
| 4 | ltaddpr 11046 | . . . . 5 ⊢ (((1P +P 1P) ∈ P ∧ 1P ∈ P) → (1P +P 1P)<P ((1P +P 1P) +P 1P)) | |
| 5 | 3, 1, 4 | mp2an 705 | . . . 4 ⊢ (1P +P 1P)<P ((1P +P 1P) +P 1P) |
| 6 | addcompr 11033 | . . . 4 ⊢ (1P +P (1P +P 1P)) = ((1P +P 1P) +P 1P) | |
| 7 | 5, 6 | breqtrri 5136 | . . 3 ⊢ (1P +P 1P)<P (1P +P (1P +P 1P)) |
| 8 | ltsrpr 11089 | . . 3 ⊢ ([〈1P, 1P〉] ~R <R [〈(1P +P 1P), 1P〉] ~R ↔ (1P +P 1P)<P (1P +P (1P +P 1P))) | |
| 9 | 7, 8 | mpbir 234 | . 2 ⊢ [〈1P, 1P〉] ~R <R [〈(1P +P 1P), 1P〉] ~R |
| 10 | df-0r 11072 | . 2 ⊢ 0R = [〈1P, 1P〉] ~R | |
| 11 | df-1r 11073 | . 2 ⊢ 1R = [〈(1P +P 1P), 1P〉] ~R | |
| 12 | 9, 10, 11 | 3brtr4i 5139 | 1 ⊢ 0R <R 1R |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 〈cop 4593 class class class wbr 5107 (class class class)co 7416 [cec 8697 Pcnp 10871 1Pc1p 10872 +P cpp 10873 <P cltp 10875 ~R cer 10876 0Rc0r 10878 1Rc1r 10879 <R cltr 10883 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7739 ax-inf2 9623 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-int 4911 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7866 df-1st 7989 df-2nd 7990 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-1o 8458 df-oadd 8462 df-omul 8463 df-er 8699 df-ec 8701 df-qs 8705 df-ni 10884 df-pli 10885 df-mi 10886 df-lti 10887 df-plpq 10920 df-mpq 10921 df-ltpq 10922 df-enq 10923 df-nq 10924 df-erq 10925 df-plq 10926 df-mq 10927 df-1nq 10928 df-rq 10929 df-ltnq 10930 df-np 10993 df-1p 10994 df-plp 10995 df-ltp 10997 df-enr 11067 df-nr 11068 df-ltr 11071 df-0r 11072 df-1r 11073 |
| This theorem is used by: 1ne0sr 11108 supsrlem 11123 |
| Copyright terms: Public domain | W3C validator |