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Mirrors > Home > MPE Home > Th. List > csbeq1a | Structured version Visualization version Unicode version |
Description: Equality theorem for proper substitution into a class. (Contributed by NM, 10-Nov-2005.) |
Ref | Expression |
---|---|
csbeq1a |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | csbid 3383 |
. 2
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2 | csbeq1 3378 |
. 2
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3 | 1, 2 | syl5eqr 2510 |
1
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