| %*=% | Multiplication variable reassignment | 
| %+% | Paste Infix Operator | 
| %+=% | Addition variable reassignment | 
| %-=% | Subtraction variable reassignment | 
| %/=% | Division variable reassignment | 
| %btwn% | Between Infix Operator | 
| %nand% | NAND infix operator | 
| %nin% | Not-In Infix Operator | 
| %xor% | XOR infix operator | 
| %^=% | Exponentiation variable reassignment | 
| %||% | Default NULL operator | 
| %|||% | Expanded default operator | 
| .is_allFalse | Tests if an object is entirely comprised of 'FALSE's | 
| .is_allNA | Tests if a vector is entirely comprised of NAs | 
| .is_length_zero | Tests if an object is of length 0 | 
| extended-null-default | Expanded default operator | 
| null-default | Default NULL operator |