| 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 11124 | . . . . . 6 ⊢ 1P ∈ P | |
| 2 | addclpr 11127 | . . . . . 6 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 705 | . . . . 5 ⊢ (1P +P 1P) ∈ P |
| 4 | ltaddpr 11143 | . . . . 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 11130 | . . . 4 ⊢ (1P +P (1P +P 1P)) = ((1P +P 1P) +P 1P) | |
| 7 | 5, 6 | breqtrri 5135 | . . 3 ⊢ (1P +P 1P)<P (1P +P (1P +P 1P)) |
| 8 | ltsrpr 11186 | . . 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 11169 | . 2 ⊢ 0R = [〈1P, 1P〉] ~R | |
| 11 | df-1r 11170 | . 2 ⊢ 1R = [〈(1P +P 1P), 1P〉] ~R | |
| 12 | 9, 10, 11 | 3brtr4i 5138 | 1 ⊢ 0R <R 1R |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2147 〈cop 4838 class class class wbr 5106 (class class class)co 7440 [cec 8740 Pcnp 10968 1Pc1p 10969 +P cpp 10970 <P cltp 10972 ~R cer 10973 0Rc0r 10975 1Rc1r 10976 <R cltr 10980 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7772 ax-inf2 9666 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-int 4911 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6319 df-ord 6380 df-on 6381 df-lim 6382 df-suc 6383 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-ov 7443 df-oprab 7444 df-mpo 7445 df-om 7899 df-1st 8022 df-2nd 8023 df-frecs 8324 df-wrecs 8355 df-recs 8404 df-rdg 8443 df-1o 8501 df-oadd 8505 df-omul 8506 df-er 8742 df-ec 8744 df-qs 8748 df-ni 10981 df-pli 10982 df-mi 10983 df-lti 10984 df-plpq 11017 df-mpq 11018 df-ltpq 11019 df-enq 11020 df-nq 11021 df-erq 11022 df-plq 11023 df-mq 11024 df-1nq 11025 df-rq 11026 df-ltnq 11027 df-np 11090 df-1p 11091 df-plp 11092 df-ltp 11094 df-enr 11164 df-nr 11165 df-ltr 11168 df-0r 11169 df-1r 11170 |
| This theorem is used by: 1ne0sr 11205 supsrlem 11220 |
| Copyright terms: Public domain | W3C validator |