back_quote              Back Quote Object
check_binary_classes    Check Binary Operator's Arguments' Classes
check_bool              Check If Argument Is Single Logical
check_class             Check Argument's Class
check_classes           Check Each Item's Class
check_content           Check Argument's Content
check_contents          Check Each Item's Content
check_interval          Check If Argument Is in Interval
check_intervals         Check If Each Item Is in Interval
check_length            Check Argument's Length
check_lengths           Check Each Item's Length
check_n                 Check If Argument Is Single Natural Number
check_positive          Check If Argument Is Single Positive Number
check_string            Check If Argument Is Single Character
check_type              Check Argument's Type
check_types             Check Each Item's Type
join                    Connect Words with Conjunction
throw                   Generate and Signal Condition
