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| Mirrors > Home > MPE Home > Th. List > 1lt4 | Structured version Visualization version GIF version | ||
| Description: 1 is less than 4. (Contributed by Mario Carneiro, 15-Sep-2013.) |
| Ref | Expression |
|---|---|
| 1lt4 | ⊢ 1 < 4 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1lt2 12309 | . 2 ⊢ 1 < 2 | |
| 2 | 2lt4 12313 | . 2 ⊢ 2 < 4 | |
| 3 | 1re 11130 | . . 3 ⊢ 1 ∈ ℝ | |
| 4 | 2re 12217 | . . 3 ⊢ 2 ∈ ℝ | |
| 5 | 4re 12227 | . . 3 ⊢ 4 ∈ ℝ | |
| 6 | 3, 4, 5 | lttri 11257 | . 2 ⊢ ((1 < 2 ∧ 2 < 4) → 1 < 4) |
| 7 | 1, 2, 6 | mp2an 692 | 1 ⊢ 1 < 4 |
| Colors of variables: wff setvar class |
| Syntax hints: class class class wbr 5096 1c1 11025 < clt 11164 2c2 12198 4c4 12200 |
| 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 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2706 ax-sep 5239 ax-nul 5249 ax-pow 5308 ax-pr 5375 ax-un 7678 ax-resscn 11081 ax-1cn 11082 ax-icn 11083 ax-addcl 11084 ax-addrcl 11085 ax-mulcl 11086 ax-mulrcl 11087 ax-mulcom 11088 ax-addass 11089 ax-mulass 11090 ax-distr 11091 ax-i2m1 11092 ax-1ne0 11093 ax-1rid 11094 ax-rnegex 11095 ax-rrecex 11096 ax-cnre 11097 ax-pre-lttri 11098 ax-pre-lttrn 11099 ax-pre-ltadd 11100 ax-pre-mulgt0 11101 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2809 df-nfc 2883 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3059 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-br 5097 df-opab 5159 df-mpt 5178 df-id 5517 df-po 5530 df-so 5531 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-er 8633 df-en 8882 df-dom 8883 df-sdom 8884 df-pnf 11166 df-mnf 11167 df-xr 11168 df-ltxr 11169 df-le 11170 df-sub 11364 df-neg 11365 df-2 12206 df-3 12207 df-4 12208 |
| This theorem is referenced by: 1lt5 12318 fldiv4p1lem1div2 13753 fldiv4lem1div2 13755 flodddiv4 16340 8nprm 17037 starvndxnbasendx 17222 slotsdifocndx 17335 m1lgs 27353 2lgslem3a 27361 2lgslem3c 27363 addsq2nreurex 27409 pntibndlem1 27554 usgrexmplef 29281 upgr4cycl4dv4e 30209 lcmineqlem 42245 aks4d1p1p7 42267 aks4d1p1p5 42268 4fppr1 47923 nnsum4primeseven 47988 nnsum4primesevenALTV 47989 tgblthelfgott 48003 usgrexmpl1lem 48209 usgrexmpl2lem 48214 usgrexmpl2nb1 48220 usgrexmpl2nb4 48223 usgrexmpl2trifr 48225 gpgprismgr4cycllem7 48289 gpgprismgr4cycllem10 48292 |
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