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Mirrors > Home > MPE Home > Th. List > chvar | Structured version Visualization version Unicode version |
Description: Implicit substitution of for into a theorem. (Contributed by Raph Levien, 9-Jul-2003.) (Revised by Mario Carneiro, 3-Oct-2016.) |
Ref | Expression |
---|---|
chvar.1 | |
chvar.2 | |
chvar.3 |
Ref | Expression |
---|---|
chvar |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | chvar.1 | . . 3 | |
2 | chvar.2 | . . . 4 | |
3 | 2 | biimpd 219 | . . 3 |
4 | 1, 3 | spim 2254 | . 2 |
5 | chvar.3 | . 2 | |
6 | 4, 5 | mpg 1724 | 1 |
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