RosettaCodeData/Task/Documentation/Lambdatalk/documentation.lambdatalk

'{def add            // define the name
 {lambda {:a :b}     // for a function with two arguments
  {+ :a :b}          // whose body calls the + primitive on them
 }                   // end function
}                    // end define
-> add

'{add 3 4}           // call the function on two values
-> 7                 // the result