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| Description: Lemma used to transfer a distributive law via an equivalence relation. |
| Ref | Expression |
|---|---|
| ecoprdi.1 |
|
| ecoprdi.2 |
|
| ecoprdi.3 |
|
| ecoprdi.4 |
|
| ecoprdi.5 |
|
| ecoprdi.6 |
|
| ecoprdi.7 |
|
| ecoprdi.8 |
|
| ecoprdi.9 |
|
| ecoprdi.10 |
|
| ecoprdi.11 |
|
| Ref | Expression |
|---|---|
| ecoprdi |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ecoprdi.1 |
. 2
| |
| 2 | opreq1 3953 |
. . 3
| |
| 3 | opreq1 3953 |
. . . 4
| |
| 4 | opreq1 3953 |
. . . 4
| |
| 5 | 3, 4 | opreq12d 3963 |
. . 3
|
| 6 | 2, 5 | eqeq12d 1481 |
. 2
|
| 7 | opreq1 3953 |
. . . 4
| |
| 8 | 7 | opreq2d 3961 |
. . 3
|
| 9 | opreq2 3954 |
. . . 4
| |
| 10 | 9 | opreq1d 3960 |
. . 3
|
| 11 | 8, 10 | eqeq12d 1481 |
. 2
|
| 12 | opreq2 3954 |
. . . 4
| |
| 13 | 12 | opreq2d 3961 |
. . 3
|
| 14 | opreq2 3954 |
. . . 4
| |
| 15 | 14 | opreq2d 3961 |
. . 3
|
| 16 | 13, 15 | eqeq12d 1481 |
. 2
|
| 17 | ecoprdi.10 |
. . . 4
| |
| 18 | ecoprdi.11 |
. . . 4
| |
| 19 | opeq12 2480 |
. . . . 5
| |
| 20 | eceq2 4262 |
. . . . 5
| |
| 21 | 19, 20 | syl 10 |
. . . 4
|
| 22 | 17, 18, 21 | mp2an 695 |
. . 3
|
| 23 | ecoprdi.2 |
. . . . . . 7
| |
| 24 | 23 | opreq2d 3961 |
. . . . . 6
|
| 25 | 24 | adantl 388 |
. . . . 5
|
| 26 | ecoprdi.3 |
. . . . . 6
| |
| 27 | ecoprdi.7 |
. . . . . 6
| |
| 28 | 26, 27 | sylan2 451 |
. . . . 5
|
| 29 | 25, 28 | eqtrd 1499 |
. . . 4
|
| 30 | 29 | 3impb 827 |
. . 3
|
| 31 | ecoprdi.4 |
. . . . . 6
| |
| 32 | ecoprdi.5 |
. . . . . 6
|