Results 21 to 30 of about 165,990,627 (290)

Formalising the pi-calculus using nominal logic [PDF]

open access: yesLogical Methods in Computer Science, 2009
We formalise the pi-calculus using the nominal datatype package, based on ideas from the nominal logic by Pitts et al., and demonstrate an implementation in Isabelle/HOL.
Jesper Bengtson, Joachim Parrow
doaj   +1 more source

Proofs without words

open access: yesLietuvos Matematikos Rinkinys, 2023
Usually, proofs of mathematical statements involve both algebraic rearrangements and logical reasoning. But there are mathematical statements whose truth is obvious at first glance when there is a diagram illustrating that proof.
Edmundas Mazėtis   +1 more
doaj   +3 more sources

Typed realizability for first-order classical analysis [PDF]

open access: yesLogical Methods in Computer Science, 2015
We describe a realizability framework for classical first-order logic in which realizers live in (a model of) typed {\lambda}{\mu}-calculus.
Valentin Blot
doaj   +1 more source

Globular: an online proof assistant for higher-dimensional rewriting [PDF]

open access: yesLogical Methods in Computer Science, 2018
This article introduces Globular, an online proof assistant for the formalization and verification of proofs in higher-dimensional category theory. The tool produces graphical visualizations of higher-dimensional proofs, assists in their construction ...
Krzysztof Bar   +2 more
doaj   +1 more source

Two for the Price of One: Lifting Separation Logic Assertions [PDF]

open access: yesLogical Methods in Computer Science, 2012
Recently, data abstraction has been studied in the context of separation logic, with noticeable practical successes: the developed logics have enabled clean proofs of tricky challenging programs, such as subject-observer patterns, and they have become ...
Jacob Thamsborg   +2 more
doaj   +1 more source

The Logic of Separation Logic: Models and Proofs

open access: yes, 2023
AbstractThe standard semantics of separation logic is restricted to finite heaps. This restriction already gives rise to a logic which does not satisfy compactness, hence it does not allow for an effective, sound and complete axiomatization. In this paper we therefore study both the general model theory and proof theory of the separation logic of ...
F.S. de Boer (Frank)   +2 more
openaire   +3 more sources

Local Normal Forms for First-Order Logic with Applications to Games and Automata [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 1999
Building on work of Gaifman [Gai82] it is shown that every first-order formula is logically equivalent to a formula of the form ∃ x 1,...,x l, ∀ y, φ where φ is r-local around y, i.e.
Thomas Schwentick, Klaus Barthelmann
doaj   +2 more sources

Proof-graphs for Minimal Implicational Logic [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2014
It is well-known that the size of propositional classical proofs can be huge. Proof theoretical studies discovered exponential gaps between normal or cut free proofs and their respective non-normal proofs.
Marcela Quispe-Cruz   +2 more
doaj   +1 more source

Geometrisation of first-order logic [PDF]

open access: yes, 2015
That every first-order theory has a coherent conservative extension is regarded by some as obvious, even trivial, and by others as not at all obvious, but instead remarkable and valuable; the result is in any case neither sufficiently well-known nor ...
Dyckhoff R.   +3 more
core   +1 more source

Interaction and Depth against Nondeterminism in Proof Search [PDF]

open access: yesLogical Methods in Computer Science, 2014
Deep inference is a proof theoretic methodology that generalizes the standard notion of inference of the sequent calculus, whereby inference rules become applicable at any depth inside logical expressions.
Ozan Kahramanogullari
doaj   +1 more source

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