| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: Multiplication with successor. Exercise 16 of [Enderton] p. 82. |
| Ref | Expression |
|---|---|
| nnmsucr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opreq2 4027 |
. . . . 5
| |
| 2 | opreq2 4027 |
. . . . . 6
| |
| 3 | id 59 |
. . . . . 6
| |
| 4 | 2, 3 | opreq12d 4036 |
. . . . 5
|
| 5 | 1, 4 | eqeq12d 1532 |
. . . 4
|
| 6 | 5 | imbi2d 615 |
. . 3
|
| 7 | opreq2 4027 |
. . . . 5
| |
| 8 | opreq2 4027 |
. . . . . 6
| |
| 9 | id 59 |
. . . . . 6
| |
| 10 | 8, 9 | opreq12d 4036 |
. . . . 5
|
| 11 | 7, 10 | eqeq12d 1532 |
. . . 4
|
| 12 | 11 | imbi2d 615 |
. . 3
|
| 13 | opreq2 4027 |
. . . . 5
| |
| 14 | opreq2 4027 |
. . . . . 6
| |
| 15 | id 59 |
. . . . . 6
| |
| 16 | 14, 15 | opreq12d 4036 |
. . . . 5
|
| 17 | 13, 16 | eqeq12d 1532 |
. . . 4
|
| 18 | 17 | imbi2d 615 |
. . 3
|
| 19 | opreq2 4027 |
. . . . 5
| |
| 20 | opreq2 4027 |
. . . . . 6
| |
| 21 | id 59 |
. . . . . 6
| |
| 22 | 20, 21 | opreq12d 4036 |
. . . . 5
|
| 23 | 19, 22 | eqeq12d 1532 |
. . . 4
|
| 24 | 23 | imbi2d 615 |
. . 3
|
| 25 | peano2b 3234 |
. . . . 5
| |
| 26 | nnm0 4364 |
. . . . 5
| |
| 27 | 25, 26 | sylbi 197 |
. . . 4
|
| 28 | nnm0 4364 |
. . . . . 6
| |
| 29 | 28 | opreq1d 4033 |
. . . . 5
|
| 30 | peano1 3237 |
. . . . . 6
| |
| 31 | nna0 4363 |
. . . . . 6
| |
| 32 | 30, 31 | ax-mp 7 |
. . . . 5
|
| 33 | 29, 32 | syl6eq 1566 |
. . . 4
|
| 34 | 27, 33 | eqtr4d 1553 |
. . 3
|
| 35 | nnmsuc 4366 |
. . . . . . . 8
| |
| 36 | 35, 25 | sylanb 451 |
. . . . . . 7
|
| 37 | nnmsuc 4366 |
. . . . . . . . 9
| |
| 38 | 37 | opreq1d 4033 |
. . . . . . . 8
|
| 39 | nnacom 4373 |
. . . . . . . . . . . 12
| |
| 40 | suceq 3038 |
. . . . . . . . . . . 12
| |
| 41 | 39, 40 | syl 10 |
. . . . . . . . . . 11
|
| 42 | nnasuc 4365 |
. . . . . . . . . . 11
| |
| 43 | nnasuc 4365 |
. . . . . . . . . . . 12
| |
| 44 | 43 | ancoms 438 |
. . . . . . . . . . 11
|
| 45 | 41, 42, 44 | 3eqtr4d 1560 |
. . . . . . . . . 10
|
| 46 | 45 | opreq2d 4034 |
. . . . . . . . 9
|
| 47 | nnaass 4377 |
. . . . . . . . . . . . 13
| |
| 48 | peano2b 3234 |
. . . . . . . . . . . . 13
| |
| 49 | 47, 48 | syl3an3b 870 |
. . . . . . . . . . . 12
|
| 50 | nnmcl 4370 |
. . . . . . . . . . . 12
| |
| 51 | 49, 50 | syl3an1 865 |
. . . . . . . . . . 11
|
| 52 | 51 | 3expb 840 |
. . . . . . . . . 10
|
| 53 | 52 | anidms 435 |
. . . . . . . . 9
|
| 54 | nnaass 4377 |
. . . . . . . . . . . . . 14
| |
| 55 | 54, 25 | syl3an3b 870 |
. . . . . . . . . . . . 13
|
| 56 | 55, 50 | syl3an1 865 |
. . . . . . . . . . . 12
|
| 57 | 56 | 3expb 840 |
. . . . . . . . . . 11
|
| 58 | 57 | an42s 512 |
. . . . . . . . . 10
|
| 59 | 58 | anidms 435 |
. . . . . . . . 9
|
| 60 | 46, 53, 59 | 3eqtr4d 1560 |
. . . . . . . 8
|
| 61 | 38, 60 | eqtrd 1550 |
. . . . . . 7
|
| 62 | 36, 61 | eqeq12d 1532 |
. . . . . 6
|
| 63 | opreq1 4026 |
. . . . . 6
| |
| 64 | 62, 63 | syl5bir 208 |
. . . . 5
|
| 65 | 64 | expcom 372 |
. . . 4
|
| 66 | 65 | a2d 13 |
. . 3
|
| 67 | 6, 12, 18, 24, 34, 66 | finds 3244 |
. 2
|
| 68 | 67 | impcom 349 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: nnmcom 4381 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-9 1001 ax-10 1002 ax-11 1003 ax-12 1004 ax-13 1005 ax-14 1006 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 ax-rep 2767 ax-sep 2777 ax-nul 2784 ax-pow 2818 ax-pr 2855 ax-un 3089 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-3or 782 df-3an 783 df-ex 1017 df-sb 1209 df-eu 1421 df-mo 1422 df-clab 1506 df-cleq 1511 df-clel 1514 df-ne 1630 df-ral 1695 df-rex 1696 df-reu 1697 df-rab 1698 df-v 1858 df-sbc 1987 df-csb 2052 df-dif 2101 df-un 2102 df-in 2103 df-ss 2105 df-nul 2333 df-if 2416 df-pw 2459 df-sn 2470 df-pr 2471 df-tp 2473 df-op 2474 df-uni 2570 df-int 2601 df-iun 2635 df-br 2693 df-opab 2741 df-tr 2755 df-eprel 2910 df-id 2913 df-po 2918 df-so 2929 df-fr 2947 df-we 2962 df-ord 2978 df-on 2979 df-lim 2980 df-suc 2981 df-om 3219 df-xp 3265 df-rel 3266 df-cnv 3267 df-co 3268 df-dm 3269 df-rn 3270 df-res 3271 df-ima 3272 df-fun 3273 df-fn 3274 df-fv 3279 df-opr 4023 df-oprab 4024 df-rdg 4233 df-oadd 4271 df-omul 4272 |