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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 12521 | . 2 ⊢ 2 < 3 | |
| 2 | 3lt4 12524 | . 2 ⊢ 3 < 4 | |
| 3 | 2re 12422 | . . 3 ⊢ 2 ∈ ℝ | |
| 4 | 3re 12428 | . . 3 ⊢ 3 ∈ ℝ | |
| 5 | 4re 12432 | . . 3 ⊢ 4 ∈ ℝ | |
| 6 | 3, 4, 5 | lttri 11441 | . 2 ⊢ ((2 < 3 ∧ 3 < 4) → 2 < 4) |
| 7 | 1, 2, 6 | mp2an 705 | 1 ⊢ 2 < 4 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: class class class wbr 5102 < clt 11348 2c2 12402 3c3 12403 4c4 12404 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7753 ax-resscn 11262 ax-1cn 11263 ax-icn 11264 ax-addcl 11265 ax-addrcl 11266 ax-mulcl 11267 ax-mulrcl 11268 ax-mulcom 11269 ax-addass 11270 ax-mulass 11271 ax-distr 11272 ax-i2m1 11273 ax-1ne0 11274 ax-1rid 11275 ax-rnegex 11276 ax-rrecex 11277 ax-cnre 11278 ax-pre-lttri 11279 ax-pre-lttrn 11280 ax-pre-ltadd 11281 ax-pre-mulgt0 11282 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-po 5558 df-so 5559 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6496 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7379 df-ov 7425 df-oprab 7426 df-mpo 7427 df-er 8722 df-en 8979 df-dom 8980 df-sdom 8981 df-pnf 11350 df-mnf 11351 df-xr 11352 df-ltxr 11353 df-le 11354 df-sub 11548 df-neg 11549 df-2 12410 df-3 12411 df-4 12412 |
| This theorem is used by: 1lt4 12526 2lt5 12529 uzuzle24 13017 fz0to4untppr 13769 fzo0to42pr 13893 4bc2eq6 14478 sqrt2gt1lt2 15448 cos01bnd 16361 4sqlem12 17141 starvndxnplusgndx 17483 prdsvalstr 17630 pcoass 25352 pilem3 26787 ppiublem1 27536 bpos1 27617 2sqlem11 27763 2sqreultlem 27781 2sqreunnltlem 27784 flt4lem7 27996 usgrexmplef 29847 upgr4cycl4dv4e 30793 sqsscirc1 34588 iccioo01 38357 fmtno4prmfac 48764 sbgoldbalt 48986 usgrexmpl2lem 49231 usgrexmpl2nb2 49238 usgrexmpl2nb4 49240 usgrexmpl2trifr 49242 gpgprismgr4cycllem7 49306 gpgprismgr4cycllem10 49309 veronesev2lem 51156 veronesev4lem 51158 veronesevrowd 51161 |
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