Logics Workbench 1.0
Logics Workbench 1.0
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逻辑工作台1.0
DOI:
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发表时间:
1998
期刊:
影响因子:
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通讯作者:
Stefan Schwendimann
中科院分区:
文献类型:
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作者:
P. Balsiger;Alain Heuerding;Stefan Schwendimann
Prover: Logics Workbench (LWB), version 1.0. See the LWB home page for more information. The LWB does backward proof search in two-sided sequent calculi. In the case of S4 we use a loop-check in order to ensure termination. With ‘use-check’ we cut off unnecessary branches generated by invertible rules with two premises; if e.g. in the proof of ∆ ⊃ A, Γ the formula A is not ‘used’, then we know that ∆ ⊃ A ∧ B, Γ is provable as well. Duplicate formulas are deleted. Structure sharing helps to reduce the copying of formulas and sequents. No heuristics. Programming language: C++ . Compiler: Sun C++ 4.0.1 . Operating system: Solaris 2.4 . Availability: The binaries of the LWB 1.0 are available via the LWB home page (choose about the LWB, install the LWB). You can also use the LWB 1.0 via WWW. Choose run a session via WWW on the LWB home page and type in your request. Additional facilities of the prover: Graphical user interface, built-in programming language, progress indicator (a slider shows how the proof search is going on), trace of the proof search is available, various functions to convert formulas. Hardware: Sun SPARCstation 5, main memory: 80MB, 1 CPU (70 MHz microSPARC II) Timing: The timing includes parsing of the formulas and the construction of the corresponding data structure. The files loaded by the LWB have the following form: load(s4); timestart; provable(box p0 -> box box p0); timestop; quit;