OBJ - Joseph Goguen 1976. A family of declarative "ultra high level"
languages. Abstract types, generic modules, subsorts (subtypes with
multiple inheritance), pattern-matching modulo equations, E-strategies
(user control over laziness), module expressions (for combining modules),
theories and views (for describing module interfaces). For the massively
parallel RRM (Rewrite Rule Machine). "Higher-Order Functions Considered
Unnecessary for Higher-Order Programming", J.A. Goguen, in Research Topics
in Functional Programming.
OBJ0 - Tardo. Based on unsorted equational logic.
OBJT - Tardo. Error algebras plus an image construct.
OBJ1 -
Comments, Experience, Additions
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