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Orthagonality

• A language should be based on few fundamental principles that may be combined without unneccessary restrictions.
• Orthagonal languages are easier to understand for programmers and implementors.
• Denotational semantics may help to achieve this.
  • Define sets of meanings and operations.
  • Give syntactic representations.
  • Organize into abstract syntax definition.

In the following we will study a set of basic design principles.