Description: Equality deduction for restricted universal quantifier. (Contributed by NM, 15-Sep-2011)
Ref | Expression | ||
---|---|---|---|
Hypotheses | riotaeqbidv.1 | |
|
riotaeqbidv.2 | |
||
Assertion | riotaeqbidv | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | riotaeqbidv.1 | |
|
2 | riotaeqbidv.2 | |
|
3 | 2 | riotabidv | |
4 | 1 | riotaeqdv | |
5 | 3 4 | eqtrd | |