Description: A meet's second argument is less than or equal to the meet. (Contributed by NM, 16-Sep-2011) (Revised by NM, 12-Sep-2018)
Ref | Expression | ||
---|---|---|---|
Hypotheses | meetval2.b | ||
meetval2.l | |||
meetval2.m | |||
meetval2.k | |||
meetval2.x | |||
meetval2.y | |||
meetlem.e | |||
Assertion | lemeet2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | meetval2.b | ||
2 | meetval2.l | ||
3 | meetval2.m | ||
4 | meetval2.k | ||
5 | meetval2.x | ||
6 | meetval2.y | ||
7 | meetlem.e | ||
8 | 1 2 3 4 5 6 7 | meetlem | |
9 | 8 | simplrd |