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    Generate Lego-based images and video Computer Science

    Generate Lego-based images and video Computer Science


    Generate Lego-based images and video

    Posted: 04 May 2021 02:09 PM PDT

    React Native vs Google's Flutter

    Posted: 04 May 2021 11:44 PM PDT

    Which book got you into computer science?

    Posted: 04 May 2021 10:30 PM PDT

    If you were asked to choose ONE book that got you interested in computer science, what would it be? The book that changed your idea about what computer science really is beyond just programming.

    It may be a non-fiction book or a text book. What was your experience level when you read that book?

    submitted by /u/dsengupta16
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    Is Hoare logic really axiomatic semantics of a programming language?

    Posted: 04 May 2021 09:00 AM PDT

    Is Hoare logic really axiomatic semantics of a programming language?

    Is Hoare logic instead about the language of Hoare triples (specifically, a proof system over the language of Hoare triples) ?

    What is the axiomatic semantics of a programming language, which is related or induced by Hoare logic then?

    Thanks.

    submitted by /u/timlee126
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    Is algebraic semantics a form of axiomatic semantics or a form of denotational semantics?

    Posted: 04 May 2021 03:30 PM PDT

    https://en.wikipedia.org/wiki/Semantics_(computer_science)#Variations says

    Algebraic semantics is a form of axiomatic semantics based on algebraic laws for describing and reasoning about program semantics in a formal manner;

    https://en.wikipedia.org/wiki/Algebraic_semantics_(computer_science) also says

    In computer science, algebraic semantics is a form of axiomatic semantics based on algebraic laws for describing and reasoning about program semantics in a formal manner.

    But p326 in Eric G. Wagner (1995). "Algebraic Semantic". In Samson Abramsky; Dov M. Gabbay; Thomas S. E. Maibaum (eds.). Handbook of Logic in Computer Science: Semantic structures. 3. (cited in https://en.wikipedia.org/wiki/Algebraic_semantics_(computer_science)#References) says

    While the term 'algebraic semantics' is frequently used to refer to forms of denotational semantics employing algebraic concepts (e.g., see [Gordon, 1979]) or to the algebraic specification of data types, [Goguen et a/., 1978], the more restricted usage employed here goes back at least to Guessarian's book [Guessarian, 1981].

    So is algebraic semantics a form of axiomatic semantics or a form of denotational semantics?

    Thanks.

    submitted by /u/timlee126
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    Are Empty statement axiom and domain axioms the same thing in Hoare logic?

    Posted: 04 May 2021 07:35 AM PDT

    Ben-Ari's logic book says

    Definition 15.8 (Deductive system H L )

    Domain axioms: Every true formula over the domain(s) of the program variables.

    1. What do domain axioms mean? Can they be formulated into a mathematical statement?

    2. https://en.wikipedia.org/wiki/Hoare_logic#Rules doesn't have the domain axioms, but Empty statement axiom, while the book doesn't Empty statement axiom but domain axioms. Are Empty statement axiom and domain axioms the same thing in Hoare logic?

    Thanks.

    submitted by /u/timlee126
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