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Mirrors > Home > MPE Home > Th. List > eqimss | Structured version Visualization version Unicode version |
Description: Equality implies the subclass relation. (Contributed by NM, 21-Jun-1993.) (Proof shortened by Andrew Salmon, 21-Jun-2011.) |
Ref | Expression |
---|---|
eqimss |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqss 3618 | . 2 | |
2 | 1 | simplbi 476 | 1 |
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