101 ;;Quote: with value semantics, a variable is an object; no pointers, call by reference, or sharing; e.g., applicative programming, APL, and SETL

102 ;;Quote: with storage semantics, a variable is a storage location with a value; pointers, sharing or aliasing, and mutable values; e.g., FORTRAN, C

102 ;;Quote: with pointer semantics, a variable is a pointer to a storage location with a value; assignment copies pointers; e.g., SNOBOL and C for arrays

105 ;;Quote: a data type is semantically transparent if primitive operations create new values instead of altering existing ones; makes value and pointer semantics the same

105+;;Quote: use pointer semantics and semantically transparent types to implement value semantics; e.g., SETL