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| Mirrors > Home > MPE Home > Th. List > 2lt4 | Structured version Visualization version GIF version | ||
| Description: 2 is less than 4. (Contributed by Mario Carneiro, 15-Sep-2013.) |
| Ref | Expression |
|---|---|
| 2lt4 | ⊢ 2 < 4 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2lt3 12402 | . 2 ⊢ 2 < 3 | |
| 2 | 3lt4 12405 | . 2 ⊢ 3 < 4 | |
| 3 | 2re 12303 | . . 3 ⊢ 2 ∈ ℝ | |
| 4 | 3re 12309 | . . 3 ⊢ 3 ∈ ℝ | |
| 5 | 4re 12313 | . . 3 ⊢ 4 ∈ ℝ | |
| 6 | 3, 4, 5 | lttri 11324 | . 2 ⊢ ((2 < 3 ∧ 3 < 4) → 2 < 4) |
| 7 | 1, 2, 6 | mp2an 704 | 1 ⊢ 2 < 4 |
| Colors of variables: wff setvar class |
| Syntax hints: class class class wbr 5104 < clt 11231 2c2 12283 3c3 12284 4c4 12285 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5250 ax-nul 5260 ax-pow 5326 ax-pr 5394 ax-un 7722 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-br 5105 df-opab 5167 df-mpt 5186 df-id 5546 df-po 5559 df-so 5560 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-er 8682 df-en 8932 df-dom 8933 df-sdom 8934 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-2 12291 df-3 12292 df-4 12293 |
| This theorem is referenced by: 1lt4 12407 2lt5 12410 uzuzle24 12897 fz0to4untppr 13646 fzo0to42pr 13770 4bc2eq6 14353 sqrt2gt1lt2 15313 cos01bnd 16230 4sqlem12 17004 starvndxnplusgndx 17346 prdsvalstr 17493 pcoass 25140 pilem3 26570 ppiublem1 27320 bpos1 27401 2sqlem11 27547 2sqreultlem 27565 2sqreunnltlem 27568 usgrexmplef 29514 upgr4cycl4dv4e 30441 sqsscirc1 34210 iccioo01 37828 flt4lem7 43248 fmtno4prmfac 48180 sbgoldbalt 48402 usgrexmpl2lem 48647 usgrexmpl2nb2 48654 usgrexmpl2nb4 48656 usgrexmpl2trifr 48658 gpgprismgr4cycllem7 48722 gpgprismgr4cycllem10 48725 |
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