Description: Membership in a finite set of sequential integer implies the upper bound is an integer. (Contributed by NM, 6-Sep-2005) (Revised by Mario Carneiro, 28-Apr-2015)
Ref | Expression | ||
---|---|---|---|
Assertion | elfzel2 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfzuz3 | |
|
2 | eluzelz | |
|
3 | 1 2 | syl | |