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Mirrors > Home > ILE Home > Th. List > oveq12d | Unicode version |
Description: Equality deduction for operation value. (Contributed by NM, 13-Mar-1995.) (Proof shortened by Andrew Salmon, 22-Oct-2011.) |
Ref | Expression |
---|---|
oveq1d.1 | |
oveq12d.2 |
Ref | Expression |
---|---|
oveq12d |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq1d.1 | . 2 | |
2 | oveq12d.2 | . 2 | |
3 | oveq12 5850 | . 2 | |
4 | 1, 2, 3 | syl2anc 409 | 1 |
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