- less-than-or-equal zero zero ~~> true
- less-than-or-equal zero one ~~> true
- less-than-or-equal zero two ~~> true
- less-than-or-equal one zero ~~> false
- less-than-or-equal one one ~~> true
- less-than-or-equal one two ~~> true
- less-than-or-equal two zero ~~> false
- less-than-or-equal two one ~~> false
- less-than-or-equal two two ~~> true
+ less-than-or-equal zero zero ~~> true
+ less-than-or-equal zero one ~~> true
+ less-than-or-equal zero two ~~> true
+ less-than-or-equal one zero ~~> false
+ less-than-or-equal one one ~~> true
+ less-than-or-equal one two ~~> true
+ less-than-or-equal two zero ~~> false
+ less-than-or-equal two one ~~> false
+ less-than-or-equal two two ~~> true