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Mirrors > Home > MPE Home > Th. List > df-ral | Structured version Visualization version Unicode version |
Description: Define restricted universal quantification. Special case of Definition 4.15(3) of [TakeutiZaring] p. 22. (Contributed by NM, 19-Aug-1993.) |
Ref | Expression |
---|---|
df-ral |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wph | . . 3 | |
2 | vx | . . 3 | |
3 | cA | . . 3 | |
4 | 1, 2, 3 | wral 2912 | . 2 |
5 | 2 | cv 1482 | . . . . 5 |
6 | 5, 3 | wcel 1990 | . . . 4 |
7 | 6, 1 | wi 4 | . . 3 |
8 | 7, 2 | wal 1481 | . 2 |
9 | 4, 8 | wb 196 | 1 |
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