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Mirrors > Home > MPE Home > Th. List > 3pos | Structured version Visualization version GIF version |
Description: The number 3 is positive. (Contributed by NM, 27-May-1999.) |
Ref | Expression |
---|---|
3pos | ⊢ 0 < 3 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2re 11714 | . . 3 ⊢ 2 ∈ ℝ | |
2 | 1re 10643 | . . 3 ⊢ 1 ∈ ℝ | |
3 | 2pos 11743 | . . 3 ⊢ 0 < 2 | |
4 | 0lt1 11164 | . . 3 ⊢ 0 < 1 | |
5 | 1, 2, 3, 4 | addgt0ii 11184 | . 2 ⊢ 0 < (2 + 1) |
6 | df-3 11704 | . 2 ⊢ 3 = (2 + 1) | |
7 | 5, 6 | breqtrri 5095 | 1 ⊢ 0 < 3 |
Colors of variables: wff setvar class |
Syntax hints: class class class wbr 5068 (class class class)co 7158 0cc0 10539 1c1 10540 + caddc 10542 < clt 10677 2c2 11695 3c3 11696 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-addrcl 10600 ax-mulcl 10601 ax-mulrcl 10602 ax-mulcom 10603 ax-addass 10604 ax-mulass 10605 ax-distr 10606 ax-i2m1 10607 ax-1ne0 10608 ax-1rid 10609 ax-rnegex 10610 ax-rrecex 10611 ax-cnre 10612 ax-pre-lttri 10613 ax-pre-lttrn 10614 ax-pre-ltadd 10615 ax-pre-mulgt0 10616 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-reu 3147 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-mpt 5149 df-id 5462 df-po 5476 df-so 5477 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-riota 7116 df-ov 7161 df-oprab 7162 df-mpo 7163 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-sub 10874 df-neg 10875 df-2 11703 df-3 11704 |
This theorem is referenced by: 3ne0 11746 4pos 11747 3rp 12398 fz0to4untppr 13013 s4fv0 14259 sqrlem7 14610 sqrt9 14635 ef01bndlem 15539 cos2bnd 15543 sin01gt0 15545 cos01gt0 15546 rpnnen2lem3 15571 rpnnen2lem4 15572 rpnnen2lem9 15577 flodddiv4 15766 43prm 16457 cnfldfun 20559 tangtx 25093 sincos6thpi 25103 pige3ALT 25107 log2cnv 25524 log2tlbnd 25525 ppiub 25782 bposlem2 25863 bposlem3 25864 bposlem4 25865 bposlem5 25866 lgsdir2lem1 25903 dchrvmasumiflem1 26079 tgcgr4 26319 frgrogt3nreg 28178 friendshipgt3 28179 ex-gcd 28238 cyc3fv3 30783 cyc3conja 30801 hgt750lemd 31921 hgt750lem2 31925 heiborlem5 35095 heiborlem7 35097 jm2.23 39600 stoweidlem13 42305 stoweidlem26 42318 stoweidlem34 42326 stoweidlem42 42334 stoweidlem59 42351 stoweid 42355 wallispilem4 42360 smfmullem4 43076 257prm 43730 127prm 43770 nfermltl2rev 43915 |
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