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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 12339 | . 2 ⊢ 2 < 3 | |
| 2 | 3lt4 12341 | . 2 ⊢ 3 < 4 | |
| 3 | 2re 12246 | . . 3 ⊢ 2 ∈ ℝ | |
| 4 | 3re 12252 | . . 3 ⊢ 3 ∈ ℝ | |
| 5 | 4re 12256 | . . 3 ⊢ 4 ∈ ℝ | |
| 6 | 3, 4, 5 | lttri 11263 | . 2 ⊢ ((2 < 3 ∧ 3 < 4) → 2 < 4) |
| 7 | 1, 2, 6 | mp2an 698 | 1 ⊢ 2 < 4 |
| Colors of variables: wff setvar class |
| Syntax hints: class class class wbr 5072 < clt 11170 2c2 12227 3c3 12228 4c4 12229 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-sep 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-nel 3039 df-ral 3054 df-rex 3064 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-br 5073 df-opab 5135 df-mpt 5154 df-id 5513 df-po 5526 df-so 5527 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-er 8633 df-en 8884 df-dom 8885 df-sdom 8886 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-2 12235 df-3 12236 df-4 12237 |
| This theorem is referenced by: 1lt4 12343 2lt5 12346 uzuzle24 12826 fz0to4untppr 13575 fzo0to42pr 13699 4bc2eq6 14282 sqrt2gt1lt2 15227 cos01bnd 16144 4sqlem12 16918 starvndxnplusgndx 17259 prdsvalstr 17406 pcoass 25009 pilem3 26436 ppiublem1 27183 bpos1 27264 2sqlem11 27410 2sqreultlem 27428 2sqreunnltlem 27431 usgrexmplef 29346 upgr4cycl4dv4e 30273 sqsscirc1 34092 iccioo01 37689 flt4lem7 43109 fmtno4prmfac 48050 sbgoldbalt 48272 usgrexmpl2lem 48517 usgrexmpl2nb2 48524 usgrexmpl2nb4 48526 usgrexmpl2trifr 48528 gpgprismgr4cycllem7 48592 gpgprismgr4cycllem10 48595 |
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