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| Mirrors > Home > ILE Home > Th. List > 3pos | Unicode version | ||
| Description: The number 3 is positive. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| 3pos |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2re 9212 |
. . 3
| |
| 2 | 1re 8177 |
. . 3
| |
| 3 | 2pos 9233 |
. . 3
| |
| 4 | 0lt1 8305 |
. . 3
| |
| 5 | 1, 2, 3, 4 | addgt0ii 8670 |
. 2
|
| 6 | df-3 9202 |
. 2
| |
| 7 | 5, 6 | breqtrri 4115 |
1
|
| Colors of variables: wff set class |
| Syntax hints: class class
class wbr 4088 (class class class)co 6017
|
| 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 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8122 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-addcom 8131 ax-addass 8133 ax-i2m1 8136 ax-0lt1 8137 ax-0id 8139 ax-rnegex 8140 ax-pre-lttrn 8145 ax-pre-ltadd 8147 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-xp 4731 df-iota 5286 df-fv 5334 df-ov 6020 df-pnf 8215 df-mnf 8216 df-ltxr 8218 df-2 9201 df-3 9202 |
| This theorem is referenced by: 3ne0 9237 3ap0 9238 4pos 9239 8th4div3 9362 halfpm6th 9363 3rp 9893 fz0to4untppr 10358 sqrt9 11608 ef01bndlem 12316 cos2bnd 12320 sin01gt0 12322 cos01gt0 12323 flodddiv4 12496 slotsdifunifndx 13314 coseq0negpitopi 15559 tangtx 15561 sincos6thpi 15565 cos02pilt1 15574 lgsdir2lem1 15756 ex-gcd 16327 |
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