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( mletsx=T:P) (Pmletsx=T)

- Term
`T`, any phrase (term or formula)`P`. - Variable
`x`bound by "block quantifier"**let**/**where**. - Alternative forms:
- Let
`x`be`T`. Then we have`A`. - Let
`x`be`T`in`P`;`A`, where`x`=`T`. `let(`

`x`=`T`:`A`)

- Let
- Semantics: identical to the semantics of
`P`with`x`replaced by`T`.Semantics of

`P`in an extension of the given assignment with`x`mapped to value of`T`.

Author: Wolfgang Schreiner

Last Modification: October 6, 1999