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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 12324 | . 2 ⊢ 2 < 3 | |
| 2 | 3lt4 12326 | . 2 ⊢ 3 < 4 | |
| 3 | 2re 12231 | . . 3 ⊢ 2 ∈ ℝ | |
| 4 | 3re 12237 | . . 3 ⊢ 3 ∈ ℝ | |
| 5 | 4re 12241 | . . 3 ⊢ 4 ∈ ℝ | |
| 6 | 3, 4, 5 | lttri 11271 | . 2 ⊢ ((2 < 3 ∧ 3 < 4) → 2 < 4) |
| 7 | 1, 2, 6 | mp2an 693 | 1 ⊢ 2 < 4 |
| Colors of variables: wff setvar class |
| Syntax hints: class class class wbr 5100 < clt 11178 2c2 12212 3c3 12213 4c4 12214 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-po 5540 df-so 5541 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-riota 7325 df-ov 7371 df-oprab 7372 df-mpo 7373 df-er 8645 df-en 8896 df-dom 8897 df-sdom 8898 df-pnf 11180 df-mnf 11181 df-xr 11182 df-ltxr 11183 df-le 11184 df-sub 11378 df-neg 11379 df-2 12220 df-3 12221 df-4 12222 |
| This theorem is referenced by: 1lt4 12328 2lt5 12331 uzuzle24 12810 fz0to4untppr 13558 fzo0to42pr 13681 4bc2eq6 14264 sqrt2gt1lt2 15209 cos01bnd 16123 4sqlem12 16896 starvndxnplusgndx 17237 prdsvalstr 17384 pcoass 24992 pilem3 26431 ppiublem1 27181 bpos1 27262 2sqlem11 27408 2sqreultlem 27426 2sqreunnltlem 27429 usgrexmplef 29344 upgr4cycl4dv4e 30272 sqsscirc1 34085 iccioo01 37579 flt4lem7 43014 fmtno4prmfac 47929 sbgoldbalt 48138 usgrexmpl2lem 48383 usgrexmpl2nb2 48390 usgrexmpl2nb4 48392 usgrexmpl2trifr 48394 gpgprismgr4cycllem7 48458 gpgprismgr4cycllem10 48461 |
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