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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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