Description: Moore closure is idempotent. Deduction form of mrcidm . (Contributed by David Moews, 1-May-2017)
Ref | Expression | ||
---|---|---|---|
Hypotheses | mrcssidd.1 | |
|
mrcssidd.2 | |
||
mrcssidd.3 | |
||
Assertion | mrcidmd | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mrcssidd.1 | |
|
2 | mrcssidd.2 | |
|
3 | mrcssidd.3 | |
|
4 | 2 | mrcidm | |
5 | 1 3 4 | syl2anc | |