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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 12385 | . 2 ⊢ 2 < 3 | |
| 2 | 3lt4 12388 | . 2 ⊢ 3 < 4 | |
| 3 | 2re 12286 | . . 3 ⊢ 2 ∈ ℝ | |
| 4 | 3re 12292 | . . 3 ⊢ 3 ∈ ℝ | |
| 5 | 4re 12296 | . . 3 ⊢ 4 ∈ ℝ | |
| 6 | 3, 4, 5 | lttri 11303 | . 2 ⊢ ((2 < 3 ∧ 3 < 4) → 2 < 4) |
| 7 | 1, 2, 6 | mp2an 702 | 1 ⊢ 2 < 4 |
| Colors of variables: wff setvar class |
| Syntax hints: class class class wbr 5097 < clt 11210 2c2 12266 3c3 12267 4c4 12268 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7713 ax-resscn 11124 ax-1cn 11125 ax-icn 11126 ax-addcl 11127 ax-addrcl 11128 ax-mulcl 11129 ax-mulrcl 11130 ax-mulcom 11131 ax-addass 11132 ax-mulass 11133 ax-distr 11134 ax-i2m1 11135 ax-1ne0 11136 ax-1rid 11137 ax-rnegex 11138 ax-rrecex 11139 ax-cnre 11140 ax-pre-lttri 11141 ax-pre-lttrn 11142 ax-pre-ltadd 11143 ax-pre-mulgt0 11144 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-opab 5160 df-mpt 5179 df-id 5538 df-po 5551 df-so 5552 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-riota 7348 df-ov 7394 df-oprab 7395 df-mpo 7396 df-er 8672 df-en 8922 df-dom 8923 df-sdom 8924 df-pnf 11212 df-mnf 11213 df-xr 11214 df-ltxr 11215 df-le 11216 df-sub 11410 df-neg 11411 df-2 12274 df-3 12275 df-4 12276 |
| This theorem is referenced by: 1lt4 12390 2lt5 12393 uzuzle24 12880 fz0to4untppr 13629 fzo0to42pr 13753 4bc2eq6 14336 sqrt2gt1lt2 15292 cos01bnd 16209 4sqlem12 16983 starvndxnplusgndx 17325 prdsvalstr 17472 pcoass 25074 pilem3 26504 ppiublem1 27254 bpos1 27335 2sqlem11 27481 2sqreultlem 27499 2sqreunnltlem 27502 usgrexmplef 29417 upgr4cycl4dv4e 30344 sqsscirc1 34166 iccioo01 37782 flt4lem7 43202 fmtno4prmfac 48142 sbgoldbalt 48364 usgrexmpl2lem 48609 usgrexmpl2nb2 48616 usgrexmpl2nb4 48618 usgrexmpl2trifr 48620 gpgprismgr4cycllem7 48684 gpgprismgr4cycllem10 48687 |
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