Description: An element of a Tarski class is strictly dominated by the class. JFM CLASSES2 th. 1. (Contributed by FL, 22-Feb-2011) (Revised by Mario Carneiro, 18-Jun-2013)
Ref | Expression | ||
---|---|---|---|
Assertion | tsksdom |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | canth2g | ||
2 | simpl | ||
3 | tskpwss | ||
4 | ssdomg | ||
5 | 2 3 4 | sylc | |
6 | sdomdomtr | ||
7 | 1 5 6 | syl2an2 |