Description: Equality deduction for a binary relation. (Contributed by NM, 8-Feb-1996)
Ref | Expression | ||
---|---|---|---|
Hypotheses | breq1d.1 | |
|
breqan12i.2 | |
||
Assertion | breqan12d | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | breq1d.1 | |
|
2 | breqan12i.2 | |
|
3 | breq12 | |
|
4 | 1 2 3 | syl2an | |