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| Mirrors > Home > MPE Home > Th. List > nfbr | Structured version Visualization version Unicode version | ||
| Description: Bound-variable hypothesis builder for binary relation. (Contributed by NM, 1-Sep-1999.) (Revised by Mario Carneiro, 14-Oct-2016.) |
| Ref | Expression |
|---|---|
| nfbr.1 |
|
| nfbr.2 |
|
| nfbr.3 |
|
| Ref | Expression |
|---|---|
| nfbr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfbr.1 |
. . . 4
| |
| 2 | 1 | a1i 11 |
. . 3
|
| 3 | nfbr.2 |
. . . 4
| |
| 4 | 3 | a1i 11 |
. . 3
|
| 5 | nfbr.3 |
. . . 4
| |
| 6 | 5 | a1i 11 |
. . 3
|
| 7 | 2, 4, 6 | nfbrd 4698 |
. 2
|
| 8 | 7 | trud 1493 |
1
|
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