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Language peer sets for DL*:
United States↑
United States/1975↑
Designed 1975 ↑
1970s languages ↑
Fourth generation↑
High Cold War↑

DL*(ID:3806/dl:001)

alternate simple view
Country: United States
Designed 1975

for Description Language, extended

Erotetic language, drawing heavily on the notions of LEAP and the GPS.
(Banerji and Ernst were Comfort's "Gurus" according to the preface to his book, and there is an interesting insight into the intellectual prehistory of the work by seenig Banerji's review of Ernst's account of the GPS, see under GPS)
Comfort's book has a critique of PLANNER, CONNIVER, QA4
Related languages
DL → DL*   Evolution of
LEAP → DL*   Incorporated features of
References:
  • Comfort (1975) Comfort, John Craig "A Flexible Efficient Computer System To Answer Human Questions - The Dl*-Programming Language For Artificial Intelligence Applications" Interdisciplinary Systems Research - ISR 8 Birkhauser 1975 Abstract Extract: Preface Extract: Introduction Extract: The Structure of the DL* System Extract: A Dl* User's Manual: Introduction Extract: Dl* And Programming Languages Extract: DL* as a Programming Language Extract: DL* and the Others Extract: Conclusions
    Resources
    • Cover of book
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