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| Description: Multiplication by 0. Theorem I.6 of [Apostol] p. 18. |
| Ref | Expression |
|---|---|
| mulzer.1 |
|
| Ref | Expression |
|---|---|
| mul01 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mulzer.1 |
. . 3
| |
| 2 | 0cn 5251 |
. . 3
| |
| 3 | 1, 2, 2 | subdi 5352 |
. 2
|
| 4 | 2 | subid 5314 |
. . 3
|
| 5 | 4 | opreq2i 3911 |
. 2
|
| 6 | 1, 2 | mulcl 5244 |
. . 3
|
| 7 | 6 | subid 5314 |
. 2
|
| 8 | 3, 5, 7 | 3eqtr3 1479 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: mul02 5355 ine0 5357 1re 5358 mul01t 5366 mulneg1 5368 mulge0 5532 msqge0 5539 recextlem2 5607 mul0or 5614 lt2msq 5780 nn0mulcl 6020 discrlem1 6537 discrlem3 6539 sqr0 6553 sqrlem6 6559 sqrth 6580 crne0 6621 rimul 6626 geolimilem 7121 sin0 7337 cos0 7339 sin4lt0 7374 demoivre 7377 ipid 8232 ip0r 8239 nmblolbii 8325 siilem1 8377 cospi 8514 eulerid 8515 sin2pi 8516 sinperlem1 8518 efper 8582 projlem7 9322 eigorth 9894 lnopeq0 10061 nmbdoplb 10078 nmcoplb 10087 nmbdfnlb 10107 nmcfnlb 10116 nmopco 10156 cdj3lem1 10480 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-4 951 ax-5 952 ax-6 953 ax-7 954 ax-gen 955 ax-8 1101 ax-9 1102 ax-10 1103 ax-12 1104 ax-13 1107 ax-14 1108 ax-11 1180 ax-17 1190 ax-16 1194 ax-11o 1202 ax-ext 1436 ax-rep 2661 ax-sep 2671 ax-nul 2678 ax-pow 2710 ax-pr 2747 ax-un 2830 ax-inf2 4549 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 773 df-3an 774 df-ex 957 df-sb 1155 df-eu 1359 df-mo 1360 df-clab 1441 df-cleq 1446 df-clel 1449 df-ne 1563 df-ral 1625 df-rex 1626 df-reu 1627 df-rab 1628 df-v 1787 df-sbc 1913 df-csb 1973 df-dif 2020 df-un 2021 df-in 2022 df-ss 2024 df-pss 2026 df-nul 2252 df-if 2333 df-pw 2373 df-sn 2383 df-pr 2384 df-tp 2386 df-op 2387 df-uni 2472 df-int 2502 df-iun 2536 df-br 2588 df-opab 2635 df-tr 2649 df-eprel 2794 df-id 2797 df-po 2804 df-so 2814 df-fr 2880 df-we 2897 df-ord 2914 df-on 2915 df-lim 2916 df-suc 2917 df-om 3095 df-xp 3147 df-rel 3148 df-cnv 3149 df-co 3150 df-dm 3151 df-rn 3152 df-res 3153 df-ima 3154 df-fun 3155 df-fn 3156 df-f 3157 df-fv 3161 df-rdg 3871 df-opr 3904 df-oprab 3905 df-1st 4017 df-2nd 4018 df-1o 4071 df-oadd 4073 df-omul 4074 df-er 4199 df-ec 4201 df-qs 4204 df-ni 4923 df-pli 4924 df-mi 4925 df-lti 4926 df-plpq 4958 df-mpq 4959 df-enq 4960 df-nq 4961 df-plq 4962 df-mq 4963 df-rq 4964 df-ltq 4965 df-1q 4966 df-np 5009 df-1p 5010 df-plp 5011 df-mp 5012 df-ltp 5013 df-plpr 5087 df-mpr 5088 df-enr 5089 df-nr 5090 df-plr 5091 df-mr 5092 df-0r 5094 df-1r 5095 df-m1r 5096 df-c 5163 df-0 5164 df-1 5165 df-i 5166 df-r 5167 df-plus 5168 df-mul 5169 df-sub 5279 df-neg 5281 |