Description: Membership in an intersection implies membership in the second set. (Contributed by Glauco Siliprandi, 2-Jan-2022)
Ref | Expression | ||
---|---|---|---|
Hypothesis | nel2nelini.1 | ||
Assertion | nel2nelini |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nel2nelini.1 | ||
2 | nel2nelin | ||
3 | 1 2 | ax-mp |