Description: Double restricted universal quantification. (Contributed by Mario Carneiro, 14-Oct-2016) Use r2allem . (Revised by Wolf Lammen, 9-Jan-2020)
Ref | Expression | ||
---|---|---|---|
Hypothesis | r2alf.1 | |
|
Assertion | r2alf | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | r2alf.1 | |
|
2 | 1 | nfcri | |
3 | 2 | 19.21 | |
4 | 3 | r2allem | |