Description: A function that maps a set x to the smallest Tarski class that contains the set. (Contributed by FL, 30-Dec-2010)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | df-tskm | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 0 | ctskm | ||
| 1 | vx | ||
| 2 | cvv | ||
| 3 | vy | ||
| 4 | ctsk | ||
| 5 | 1 | cv | |
| 6 | 3 | cv | |
| 7 | 5 6 | wcel | |
| 8 | 7 3 4 | crab | |
| 9 | 8 | cint | |
| 10 | 1 2 9 | cmpt | |
| 11 | 0 10 | wceq |