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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 12312 | . 2 ⊢ 2 < 3 | |
| 2 | 3lt4 12314 | . 2 ⊢ 3 < 4 | |
| 3 | 2re 12219 | . . 3 ⊢ 2 ∈ ℝ | |
| 4 | 3re 12225 | . . 3 ⊢ 3 ∈ ℝ | |
| 5 | 4re 12229 | . . 3 ⊢ 4 ∈ ℝ | |
| 6 | 3, 4, 5 | lttri 11259 | . 2 ⊢ ((2 < 3 ∧ 3 < 4) → 2 < 4) |
| 7 | 1, 2, 6 | mp2an 692 | 1 ⊢ 2 < 4 |
| Colors of variables: wff setvar class |
| Syntax hints: class class class wbr 5098 < clt 11166 2c2 12200 3c3 12201 4c4 12202 |
| 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 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-resscn 11083 ax-1cn 11084 ax-icn 11085 ax-addcl 11086 ax-addrcl 11087 ax-mulcl 11088 ax-mulrcl 11089 ax-mulcom 11090 ax-addass 11091 ax-mulass 11092 ax-distr 11093 ax-i2m1 11094 ax-1ne0 11095 ax-1rid 11096 ax-rnegex 11097 ax-rrecex 11098 ax-cnre 11099 ax-pre-lttri 11100 ax-pre-lttrn 11101 ax-pre-ltadd 11102 ax-pre-mulgt0 11103 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-reu 3351 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 df-mpt 5180 df-id 5519 df-po 5532 df-so 5533 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-er 8635 df-en 8884 df-dom 8885 df-sdom 8886 df-pnf 11168 df-mnf 11169 df-xr 11170 df-ltxr 11171 df-le 11172 df-sub 11366 df-neg 11367 df-2 12208 df-3 12209 df-4 12210 |
| This theorem is referenced by: 1lt4 12316 2lt5 12319 uzuzle24 12798 fz0to4untppr 13546 fzo0to42pr 13669 4bc2eq6 14252 sqrt2gt1lt2 15197 cos01bnd 16111 4sqlem12 16884 starvndxnplusgndx 17225 prdsvalstr 17372 pcoass 24980 pilem3 26419 ppiublem1 27169 bpos1 27250 2sqlem11 27396 2sqreultlem 27414 2sqreunnltlem 27417 usgrexmplef 29332 upgr4cycl4dv4e 30260 sqsscirc1 34065 iccioo01 37532 flt4lem7 42902 fmtno4prmfac 47818 sbgoldbalt 48027 usgrexmpl2lem 48272 usgrexmpl2nb2 48279 usgrexmpl2nb4 48281 usgrexmpl2trifr 48283 gpgprismgr4cycllem7 48347 gpgprismgr4cycllem10 48350 |
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