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| Mirrors > Home > ILE Home > Th. List > 1lt4 | Unicode version | ||
| Description: 1 is less than 4. (Contributed by Mario Carneiro, 15-Sep-2013.) |
| Ref | Expression |
|---|---|
| 1lt4 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1lt2 9280 |
. 2
| |
| 2 | 2lt4 9284 |
. 2
| |
| 3 | 1re 8145 |
. . 3
| |
| 4 | 2re 9180 |
. . 3
| |
| 5 | 4re 9187 |
. . 3
| |
| 6 | 3, 4, 5 | lttri 8251 |
. 2
|
| 7 | 1, 2, 6 | mp2an 426 |
1
|
| Colors of variables: wff set class |
| Syntax hints: class class
class wbr 4083 |
| 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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-setind 4629 ax-cnex 8090 ax-resscn 8091 ax-1cn 8092 ax-1re 8093 ax-icn 8094 ax-addcl 8095 ax-addrcl 8096 ax-mulcl 8097 ax-addcom 8099 ax-addass 8101 ax-i2m1 8104 ax-0lt1 8105 ax-0id 8107 ax-rnegex 8108 ax-pre-lttrn 8113 ax-pre-ltadd 8115 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-opab 4146 df-xp 4725 df-iota 5278 df-fv 5326 df-ov 6004 df-pnf 8183 df-mnf 8184 df-ltxr 8186 df-2 9169 df-3 9170 df-4 9171 |
| This theorem is referenced by: 1lt5 9289 fldiv4p1lem1div2 10525 fldiv4lem1div2 10527 flodddiv4 12447 starvndxnbasendx 13175 m1lgs 15764 2lgslem3a 15772 2lgslem3c 15774 |
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