<language, specification> An algebraic specification language by David Aspinall of the University of Edinburgh. ASL+ has rules for proving the satisfaction of specifications. It can also be viewed as a type theory with subtyping, featuring contravariant refinement for Pi-abstracted specifications and a notion of stratified equality for higher-order objects.

Last updated: 1994-09-14

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ASIS « ASK « ASL « ASL+ » As Low As Reasonably Practicable » ASM » ASME