Common logical judgments of EL expressions

Summarize the logical judgment of EL expressions

1: eq is equal to ne, neq is not equal;
2: gt is greater than, lt is less than;

3: gte, ge greater than or equal to  
     lte, le less than or equal to  
4: not non-mod modulo  
     is [not] div by is divisible by a certain number  
     is [not] even  
     is [not] even by $b ($ a / $b) % 2 == 0  
    is [not] whether odd is odd  
   is not odd by $b ie ($a / $b) % 2 != 0 [/size]