Deep copy: no possible sharing between x and copy x.
x
copy x
Is there some element satisfying the given predicate?
returns the given argument only if it is a valid function name (see Parameter_customize.get_c_ified_functions for more information), and abort otherwise.
Parameter_customize.get_c_ified_functions
always return the argument, even if the argument is not a function name.
What are the acceptable values for this parameter.
What is the possible range of values for this parameter.
Increment the integer.
Does the given element belong to the set?
Set what are the acceptable values for this parameter.
Set what is the possible range of values for this parameter.