| Givan, R., McAllester, D., Witty, C., Zalondek, K., Ontic: Language specification and user's manual, Tech. rep., MIT, 1992, Draft 4 |
....Thus, we have a generic treatment of recursion for generic theorem proving. In related work, Noel [18] has proved many theorems about recursion using Isabelle s set theory, including well founded recursion and a definition of lists. But Noel does not develop a general theory of recursion. Ontic [10] provides strong support for recursively defined functions and sets. Ontic s theory of recursion di#ers from mine; it treats recursive functions as least fixedpoints, with no use of wellfounded relations. The Knaster Tarski Theorem can be dropped. If h is continuous then n## h (#)isits least ....
Givan, R., McAllester, D., Witty, C., Zalondek, K., Ontic: Language specification and user's manual, Tech. rep., MIT, 1992, Draft 4
....Thus, we have a generic treatment of recursion for generic theorem proving. In related work, Noel [18] has proved many theorems about recursion using Isabelle s set theory, including well founded recursion and a definition of lists. But Noel does not develop a general theory of recursion. Ontic [10] provides strong support for recursively defined functions and sets. Ontic s theory of recursion di#ers from mine; it treats recursive functions as least fixedpoints, with no use of wellfounded relations. The Knaster Tarski Theorem can be dropped. If h is continuous then # n## h n (#) is its ....
Givan, R., McAllester, D., Witty, C., Zalondek, K., Ontic: Language specification and user's manual, Tech. rep., MIT, 1992, Draft 4
....notification of design changes, and active management of design dependencies. Much of the intellectual foundation has been laid, and we are drawing from representation work in design automation [34] decision support [1] design rationale [23] dependency management [27, 31] applied mathematics [13, 35], behavior modelling [6, 10, 30, 36] and the representation of everyday human experience [25] We plan to develop a basic ontological foundation and then extend it in the directions indicated by how it is used in practice by engineers. The initial shade ontology (based on [17] and an informal ....
Robert Givan, David McAllester, and Kevin Zalondek. Ontic91: Language specification and user's manual. Technical report, MIT, 1991.
....relations that hold within a formula. The axiomatic basis is apparently BG; some axioms are given explicitly, while others are built into the algorithms. Using its graphs, the program can perform intricate chains of reasoning. Ontic uses a Lisp like language for set theory expressions and proofs [16]. A fragment of this language is executable. Sets, classes, and recursive functions may be defined. The ZF axioms are built into a knowledge base of facts about set theory. Ontic appeals to definitions and theorems automatically; the user never refers to them by name. The aim is to let users ....
R. Givan, D. McAllester, C. Witty, and K. Zalondek. Ontic: Language specification and user's manual. Technical report, MIT, 1992. Draft 4.
....Thus, we have a generic treatment of recursion for generic theorem proving. In related work, Noel [18] has proved many theorems about recursion using Isabelle s set theory, including well founded recursion and a definition of lists. But Noel does not develop a general theory of recursion. Ontic [10] provides strong support for recursively defined functions and sets. Ontic s theory of recursion differs from mine; it treats recursive functions as least fixedpoints, with no use of well founded relations. The Knaster Tarski Theorem can be dropped. If h is continuous then S n2 h n ( is its ....
Givan, R., McAllester, D., Witty, C., Zalondek, K., Ontic: Language specification and user's manual, Tech. rep., MIT, 1992, Draft 4
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