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| Description: Relationship between subtraction and negative. Theorem I.3 of [Apostol] p. 18. |
| Ref | Expression |
|---|---|
| negsubt |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opreq1 3974 |
. . 3
| |
| 2 | opreq1 3974 |
. . 3
| |
| 3 | 1, 2 | eqeq12d 1492 |
. 2
|
| 4 | negeq 5371 |
. . . 4
| |
| 5 | 4 | opreq2d 3982 |
. . 3
|
| 6 | opreq2 3975 |
. . 3
| |
| 7 | 5, 6 | eqeq12d 1492 |
. 2
|
| 8 | 0cn 5340 |
. . . 4
| |
| 9 | 8 | elimel 2398 |
. . 3
|
| 10 | 8 | elimel 2398 |
. . 3
|
| 11 | 9, 10 | negsub 5393 |
. 2
|
| 12 | 3, 7, 11 | dedth2h 2391 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: addsubasst 5395 subnegt 5406 subcan2t 5414 subcant 5424 resubclt 5450 negdi2t 5468 negsubdit 5469 negsubdi2t 5470 submul2t 5472 subsub2t 5473 subsub4t 5476 nnncan1t 5479 addsub4t 5485 mulsubt 5489 pnncant 5492 lesub1t 5672 lesub2t 5673 ltsub1t 5674 ltsub2t 5675 subge0t 5686 divsubdirt 5776 divsubdirtOLD 5777 zaddclt 6167 zsubclt 6170 zltp1let 6183 ceim1lt 6251 qsubclt 6273 icoshftf1oi 6410 fzsubelt 6502 seqzval2t 6554 resubt 6806 imsubt 6809 cjsubt 6816 recjt 6818 cjreimt 6828 cj11t 6830 absdifltt 6883 absdiflet 6884 fsumshftm 7032 climge0 7112 climsub 7130 clim2serzt 7134 clim2serz 7145 geolimilem 7235 efsubt 7371 efi4pt 7435 efmivalt 7448 sinsubt 7455 cossubt 7456 sincossqt 7461 demoivre 7485 vcsubdir 8171 cnnvm 8309 ipval2 8353 cnph 8474 ipasslem2 8487 ipsubdir 8504 shftefif1olem 8736 hvsubdistr2t 8912 his2subt 8953 lnfnsub 9970 mslb1 10600 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-9 967 ax-10 968 ax-11 969 ax-12 970 ax-13 971 ax-14 972 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 ax-rep 2698 ax-sep 2708 ax-nul 2715 ax-pow 2748 ax-pr 2785 ax-un 2872 ax-inf2 4634 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 778 df-3an 779 df-ex 983 df-sb 1174 df-eu 1384 df-mo 1385 df-clab 1467 df-cleq 1472 df-clel 1475 df-ne 1590 df-ral 1652 df-rex 1653 df-reu 1654 df-rab 1655 df-v 1815 df-sbc 1945 df-csb 2005 df-dif 2052 df-un 2053 df-in 2054 df-ss 2056 df-pss 2058 df-nul 2284 df-if 2366 df-pw 2406 df-sn 2416 df-pr 2417 df-tp 2419 df-op 2420 df-uni 2508 df-int 2538 df-iun 2572 df-br 2625 df-opab 2672 df-tr 2686 df-eprel 2838 df-id 2841 df-po 2846 df-so 2856 df-fr 2923 df-we 2940 df-ord 2957 df-on 2958 df-lim 2959 df-suc 2960 df-om 3138 df-xp 3190 df-rel 3191 df-cnv 3192 df-co 3193 df-dm 3194 df-rn 3195 df-res 3196 df-ima 3197 df-fun 3198 df-fn 3199 df-f 3200 df-fv 3204 df-rdg 3938 df-opr 3971 df-oprab 3972 df-1st 4085 df-2nd 4086 df-1o 4139 df-oadd 4141 df-omul 4142 df-er 4267 df-ec 4269 df-qs 4272 df-ni 5012 df-pli 5013 df-mi 5014 df-lti 5015 df-plpq 5047 df-mpq 5048 df-enq 5049 df-nq 5050 df-plq 5051 df-mq 5052 df-rq 5053 df-ltq 5054 df-1q 5055 df-np 5098 df-1p 5099 df-plp 5100 df-mp 5101 df-ltp 5102 df-plpr 5176 df-mpr 5177 df-enr 5178 df-nr 5179 df-plr 5180 df-mr 5181 df-0r 5183 df-1r 5184 df-m1r 5185 df-c 5252 df-0 5253 df-1 5254 df-i 5255 df-r 5256 df-plus 5257 df-mul 5258 df-sub 5368 df-neg 5370 |