| New Foundations Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > NFE Home > Th. List > df-pprod | Unicode version | ||
| Description: Define the parallel product operation. (Contributed by SF, 9-Feb-2015.) |
| Ref | Expression |
|---|---|
| df-pprod |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cA |
. . 3
| |
| 2 | cB |
. . 3
| |
| 3 | 1, 2 | cpprod 5738 |
. 2
|
| 4 | c1st 4718 |
. . . 4
| |
| 5 | 1, 4 | ccom 4722 |
. . 3
|
| 6 | c2nd 4784 |
. . . 4
| |
| 7 | 2, 6 | ccom 4722 |
. . 3
|
| 8 | 5, 7 | ctxp 5736 |
. 2
|
| 9 | 3, 8 | wceq 1642 |
1
|
| Colors of variables: wff setvar class |
| This definition is referenced by: pprodeq1 5835 pprodeq2 5836 qrpprod 5837 pprodexg 5838 brpprod 5840 cnvpprod 5842 |
| Copyright terms: Public domain | W3C validator |