Introduction

Design Principle

Lean Core, Rich Libraries. The language core defines only constructs requiring special syntax or static analysis. Data transformation and utilities are standard library methods.

Core (compiler)	Library (stdlib)
run, try, match, recurse	map, filter, fold, find
parallel, spawn, timeout	retry, validate
cache, with	Collection methods

See Clause 15 for core constructs. See Annex C for library methods.