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Mirrors > Home > MPE Home > Th. List > rabid | Structured version Visualization version Unicode version |
Description: An "identity" law of concretion for restricted abstraction. Special case of Definition 2.1 of [Quine] p. 16. (Contributed by NM, 9-Oct-2003.) |
Ref | Expression |
---|---|
rabid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rab 2921 | . 2 | |
2 | 1 | abeq2i 2735 | 1 |
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