Description: There are non-measurable sets (the Axiom of Choice is used, in the invoked weth ). (Contributed by Glauco Siliprandi, 26-Jun-2021)
Ref | Expression | ||
---|---|---|---|
Assertion | vitali2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | reex | ||
2 | weth | ||
3 | 1 2 | ax-mp | |
4 | vitali | ||
5 | 4 | exlimiv | |
6 | 3 5 | ax-mp |