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| Description: Two times a number. |
| Ref | Expression |
|---|---|
| 2times |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opreq2 4890 |
. . 3
| |
| 2 | id 73 |
. . . 4
| |
| 3 | 2, 2 | opreq12d 4900 |
. . 3
|
| 4 | 1, 3 | eqeq12d 1899 |
. 2
|
| 5 | 0cn 6481 |
. . . 4
| |
| 6 | 5 | elimel 3025 |
. . 3
|
| 7 | 6 | 2timesi 7187 |
. 2
|
| 8 | 4, 7 | dedth 3011 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: times2 7189 2halves 7225 halfaddsub 7227 avgle 7231 expubnd 7853 subsq2 7889 imcj 8069 absmax 8149 climaddlem3 8376 efival 8712 addsin 8722 subsin 8723 addcos 8724 subcos 8725 sin2t 8727 cos2t 8728 sin01bndlem3 8735 metge0 9096 bl2in 9120 ioo2bl 9190 nvge0 9634 cnph 9819 ubthlem11 9882 sineq0re 10067 hmopidmchi 11723 cdj3lem1 12006 mslb1 15007 2wsms 15008 msra3 15009 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-13 1311 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-rep 3428 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 ax-un 3790 ax-inf2 5731 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-3or 859 df-3an 860 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-ral 2109 df-rex 2110 df-reu 2111 df-rab 2112 df-v 2294 df-sbc 2454 df-csb 2541 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-pss 2607 df-nul 2876 df-if 2983 df-pw 3035 df-sn 3049 df-pr 3050 df-tp 3052 df-op 3053 df-uni 3178 df-int 3215 df-iun 3257 df-br 3339 df-opab 3396 df-tr 3412 df-eprel 3583 df-id 3586 df-po 3591 df-so 3604 df-fr 3625 df-we 3644 df-ord 3660 df-on 3661 df-lim 3662 df-suc 3663 df-om 3950 df-xp 4000 df-rel 4001 df-cnv 4002 df-co 4003 df-dm 4004 df-rn 4005 df-res 4006 df-ima 4007 df-fun 4008 df-fn 4009 df-f 4010 df-fv 4014 df-opr 4886 df-oprab 4887 df-1st 5020 df-2nd 5021 df-rdg 5140 df-1o 5177 df-oadd 5179 df-omul 5180 df-er 5318 df-ec 5320 df-qs 5323 df-ni 6152 df-pli 6153 df-mi 6154 df-lti 6155 df-plpq 6187 df-mpq 6188 df-enq 6189 df-nq 6190 df-plq 6191 df-mq 6192 df-rq 6193 df-ltq 6194 df-1q 6195 df-np 6238 df-1p 6239 df-plp 6240 df-mp 6241 df-ltp 6242 df-plpr 6316 df-mpr 6317 df-enr 6318 df-nr 6319 df-plr 6320 df-mr 6321 df-0r 6323 df-1r 6324 df-m1r 6325 df-c 6392 df-0 6393 df-1 6394 df-i 6395 df-r 6396 df-plus 6397 df-mul 6398 df-2 7154 |