slide 30

Constructing Sequences

• The comma operator “ , ”
  • means concatenation
  • makes sequences: (a, 1, w)
• Sequences cannot nest (one level only)
  • (a, b, (x, y, z), y, c) evaluates to
  • (a, b, x, y, z, y, c)
• Remember, duplication is allowed inside sequences!