Names
A name, or an identifier, is a sequence of letters
containing at least one letter.
Identifiers are only used to name values. They are not variables.
The reserved words
- and,
- case,
- def,
- else,
- end,
- false,
- head,
- in,
- isBool,
- isFunction,
- isInt,
- isList,
- isNull,
- let,
- not,
- or,
- print,
- printList,
- produce,
- readChar,
- readInt,
- tail and
- true
are not allowed to be used as identifiers.