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| Description: Associative law for scalar product and composition of operators. |
| Ref | Expression |
|---|---|
| homco1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | homval 11151 |
. . . . . . . . 9
| |
| 2 | ffvelrn 4787 |
. . . . . . . . 9
| |
| 3 | 1, 2 | syl3an3 1132 |
. . . . . . . 8
|
| 4 | 3 | 3expa 1067 |
. . . . . . 7
|
| 5 | 4 | exp43 415 |
. . . . . 6
|
| 6 | 5 | 3imp1 1081 |
. . . . 5
|
| 7 | fvco3 4739 |
. . . . . . . . 9
| |
| 8 | homulcl 11322 |
. . . . . . . . . 10
| |
| 9 | ffun 4565 |
. . . . . . . . . 10
| |
| 10 | 8, 9 | syl 12 |
. . . . . . . . 9
|
| 11 | 7, 10 | syl3an1 1130 |
. . . . . . . 8
|
| 12 | 11 | 3expia 1069 |
. . . . . . 7
|
| 13 | 12 | 3impa 1062 |
. . . . . 6
|
| 14 | 13 | imp 377 |
. . . . 5
|
| 15 | fvco3 4739 |
. . . . . . . . 9
| |
| 16 | ffun 4565 |
. . . . . . . . 9
| |
| 17 | 15, 16 | syl3an1 1130 |
. . . . . . . 8
|
| 18 | 17 | 3expa 1067 |
. . . . . . 7
|
| 19 | 18 | opreq2d 4898 |
. . . . . 6
|
| 20 | 19 | 3adantl1 1032 |
. . . . 5
|
| 21 | 6, 14, 20 | 3eqtr4d 1937 |
. . . 4
|
| 22 | homval 11151 |
. . . . . . . 8
| |
| 23 | fco 4573 |
. . . . . . . 8
| |
| 24 | 22, 23 | syl3an2 1131 |
. . . . . . 7
|
| 25 | 24 | 3expia 1069 |
. . . . . 6
|
| 26 | 25 | 3impb 1063 |
. . . . 5
|
| 27 | 26 | imp 377 |
. . . 4
|
| 28 | 21, 27 | eqtr4d 1928 |
. . 3
|
| 29 | 28 | r19.21aiva 2176 |
. 2
|
| 30 | fco 4573 |
. . . . 5
| |
| 31 | 30, 8 | sylan 497 |
. . . 4
|
| 32 | 31 | 3impa 1062 |
. . 3
|
| 33 | homulcl 11322 |
. . . . 5
| |
| 34 | 33, 23 | sylan2 500 |
. . . 4
|
| 35 | 34 | 3impb 1063 |
. . 3
|
| 36 | hoeq 11323 |
. . 3
| |
| 37 | 32, 35, 36 | syl11anc 524 |
. 2
|
| 38 | 29, 37 | mpbid 212 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: opsqrlem1 11711 |
| 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-hilex 10501 ax-hfvmul 10507 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 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-v 2294 df-sbc 2454 df-csb 2541 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-op 3053 df-uni 3178 df-br 3339 df-opab 3396 df-id 3586 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-map 5383 df-homul 11140 |