Description: Membership in a half-open integer interval implies that the bounds are unequal. (Contributed by Mario Carneiro, 29-Sep-2015)
Ref | Expression | ||
---|---|---|---|
Assertion | elfzolt3b | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfzoel1 | |
|
2 | elfzoel2 | |
|
3 | elfzolt3 | |
|
4 | fzolb | |
|
5 | 1 2 3 4 | syl3anbrc | |