Computer Science / Logic

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Verifying Sierpinski and Riesel Numbers in ACL2

Verifying Sierpinski and Riesel Numbers in ACL2

์ด ๋…ผ๋ฌธ์€ ์‹œ๋ฅดํ”ผ๋‹ˆ(Sierpiล„ski) ์ˆ˜์™€ ๋ ˆ์ ค(Riesel) ์ˆ˜์— ๋Œ€ํ•œ ์‹ฌ๋„ ์žˆ๋Š” ๋ถ„์„๊ณผ ACL2๋ผ๋Š” ์ปดํ“จํ„ฐ ์ฆ๋ช… ๋„๊ตฌ๋ฅผ ํ™œ์šฉํ•œ ๊ทธ๋“ค์˜ ์„ฑ์งˆ ๊ฒ€์ฆ ๋ฐฉ๋ฒ•์„ ๋‹ค๋ฃน๋‹ˆ๋‹ค. ์ด๋“ค ์ˆ˜๋Š” ํŠน์ • ์–‘์˜ ํ™€์ˆ˜ ์ •์ˆ˜๊ฐ€ ๋ฌดํ•œ ๋ฆฌ์ŠคํŠธ์—์„œ ์†Œ์ˆ˜๊ฐ€ ๋ฐœ๊ฒฌ๋˜์ง€ ์•Š๋Š” ๊ฒฝ์šฐ์— ํ•ด๋‹นํ•˜๋ฉฐ, ์ด๋ฅผ ํ†ตํ•ด ์ˆ˜ํ•™์ ์œผ๋กœ ์ค‘์š”ํ•œ ์œ„์น˜๋ฅผ ์ฐจ์ง€ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ์‹œ๋ฅดํ”ผ๋‹ˆ์™€ ๋ ˆ์ ค ์ˆ˜์˜ ๊ฐœ๋… ์‹œ๋ฅดํ”ผ๋‹ˆ ์ˆ˜์™€ ๋ ˆ์ ค ์ˆ˜๋Š” ๊ฐ๊ฐ k โ€ข 2^n + 1๊ณผ k โ€ข 2^n 1 ํ˜•ํƒœ์˜ ๋ฌดํ•œ ๋ฆฌ์ŠคํŠธ์—์„œ ์†Œ์ˆ˜๊ฐ€ ๋ฐœ๊ฒฌ๋˜์ง€ ์•Š๋Š” ์–‘์˜ ํ™€์ˆ˜ ์ •์ˆ˜์ž…๋‹ˆ๋‹ค. ์ด๋“ค ์ˆ˜๋ฅผ ์‹๋ณ„ํ•˜๋Š” ๊ฒƒ์€ ์–ด๋ ต์ง€๋งŒ, ํŠน์ • ์กฐ๊ฑด์„ ๋งŒ์กฑํ•˜๋ฉด

Computer Science Discrete Mathematics Logic
An Algebraic Specification of the Semantic Web

An Algebraic Specification of the Semantic Web

๋งค๋ ฅ์ ์ธ ํ•œ๊ธ€ ์ œ๋ชฉ: ์„ธ๋ฏธํ‹ฑ ์›น์˜ ์„ธ๋ถ„ํ™”๋œ ๋Œ€์ˆ˜์  ์‚ฌ์–‘: CafeOBJ๋ฅผ ํ™œ์šฉํ•œ ์ ‘๊ทผ ์ดˆ๋ก ์ „์ฒด ๋ฒˆ์—ญ ๋ฐ ์ •๋ฆฌ: ๋ณธ ๋…ผ๋ฌธ์€ ์ธํ„ฐ๋„ท๊ณผ ์›น ๊ธฐ์ˆ ์˜ ์ง„ํ™”์— ๋”ฐ๋ฅธ ๋ช…ํ™•ํ•œ ๊ทœ์ •๊ณผ ๊ณต์‹์ ์ธ ์„ค๋ช…์˜ ํ•„์š”์„ฑ์„ ๊ฐ•์กฐํ•˜๋ฉฐ, ์Šฌ๋ผ์ด๋“œ ์‡ผ์™€ ๊ฐ™์€ ๊ตฌ์กฐํ™”๋œ ์›น์‚ฌ์ดํŠธ์˜ ๋Œ€์ˆ˜์  ์‚ฌ์–‘์„ ์ œ์‹œํ•œ๋‹ค. ์ด ์‚ฌ์–‘์€ ๊ฐ ํŽ˜์ด์ง€๊ฐ€ ์—ฐ๊ฒฐ๋˜๋Š” ์›น์‚ฌ์ดํŠธ๋ฅผ ๋ชจ๋“ˆ ์‹œ์Šคํ…œ์„ ํ†ตํ•ด CafeOBJ๋กœ ๋ถ„ํ•ดํ•˜์—ฌ ์ •์˜ํ•œ๋‹ค. ์„ธ๋ฏธํ‹ฑ ์›น์€ ํ˜„์žฌ ์›น๊ณผ ๊ณต์กดํ•˜๋ฉฐ, ์˜๋ฏธ๋ก , ์˜๋ฏธ ๋ฐ ์ƒˆ๋กœ์šด ์—ฐ์‚ฐ์„ ์ถ”๊ฐ€ํ•จ์œผ๋กœ์จ ๋ณด์™„๋œ๋‹ค. ๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” [9]์˜ ์›น ์‚ฌ์–‘์„ ํ™œ์šฉํ•˜๊ณ  ์ถ”๊ฐ€์ ์ธ ์„ธ๋ฏธํ‹ฑ ๊ธฐ์ˆ ๋“ค์„ ์‚ฌ์–‘ํ™”ํ•˜์—ฌ

Logic Computer Science
LeanCat: A Benchmark Suite for Formal Category Theory in Lean (Part I: 1-Categories)

LeanCat: A Benchmark Suite for Formal Category Theory in Lean (Part I: 1-Categories)

์ด ๋…ผ๋ฌธ์€ ํ˜•์‹ํ™”๋œ ์ˆ˜ํ•™ ์—ฐ๊ตฌ์— ์žˆ์–ด โ€œ๊ตฌ์กฐ์  ์ถ”๋ก โ€์ด๋ผ๋Š” ํ•ต์‹ฌ ๊ณผ์ œ๋ฅผ ๋ช…ํ™•ํžˆ ์ œ์‹œํ•œ๋‹ค๋Š” ์ ์—์„œ ์˜๋ฏธ๊ฐ€ ํฌ๋‹ค. ๊ธฐ์กด์˜ ์ •๋ฆฌ ์ฆ๋ช… ๋ฒค์น˜๋งˆํฌ๋Š” ์ฃผ๋กœ ๊ตฌ์ฒด์ ์ธ ๊ณ„์‚ฐ์ด๋‚˜ ์ „ํ†ต์ ์ธ ์œ„์ƒยท๋Œ€์ˆ˜์  ๋ช…์ œ์— ์ดˆ์ ์„ ๋งž์ถ”์–ด ์™”์œผ๋ฉฐ, ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ(์˜ˆ: Mathlib)์™€์˜ ์ƒํ˜ธ์ž‘์šฉ์„ ์ตœ์†Œํ™”ํ–ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ํ˜„๋Œ€ ์ˆ˜ํ•™์€ ๋ฒ”์ฃผ๋ก ๊ณผ ๊ฐ™์€ ๊ณ ์ฐจ ๊ตฌ์กฐ๋ฅผ ํ†ตํ•ด ๋‹ค์–‘ํ•œ ๋ถ„์•ผ๋ฅผ ์—ฐ๊ฒฐํ•˜๊ณ , ์ด๋Ÿฌํ•œ ๊ตฌ์กฐ๋Š” ์ •์˜, ํ•จ์ž, ์ž์—ฐ ๋ณ€ํ™˜ ๋“ฑ ๋ณตํ•ฉ์ ์ธ ์ธํ„ฐํŽ˜์ด์Šค๋ฅผ ์š”๊ตฌํ•œ๋‹ค. ๋”ฐ๋ผ์„œ LLM์ด ์‹ค์ œ ์—ฐ๊ตฌ์ž ์ˆ˜์ค€์˜ ๋Šฅ๋ ฅ์„ ๋ณด์ด๋ ค๋ฉด ๋‹จ์ˆœํžˆ โ€œ์ •๋ฆฌ๋ฅผ ์ฆ๋ช…โ€ํ•˜๋Š” ๊ฒƒ์„ ๋„˜์–ด, ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ ์•ˆ์—์„œ ์ 

Computer Science Logic
Modelling of Genetic Regulatory Mechanisms with GReg

Modelling of Genetic Regulatory Mechanisms with GReg

๋ณธ ๋…ผ๋ฌธ์€ ์œ ์ „์  ์กฐ์ ˆ ๋ฉ”์ปค๋‹ˆ์ฆ˜์˜ ๋ชจ๋ธ๋ง์— ์žˆ์–ด ๊ธฐ์กด ์‹œ๋ฎฌ๋ ˆ์ด์…˜ ๋„๊ตฌ์™€ ๋ชจ๋ธ ์ฒดํฌ(model checking) ๊ธฐ๋ฒ• ์‚ฌ์ด์˜ ๊ท ํ˜•์ ์„ ์ฐพ๋Š” ๋ฐ ์ดˆ์ ์„ ๋งž์ถ”๊ณ  ์žˆ๋‹ค. ํŠนํžˆ, GReg์ด๋ผ๋Š” ๋„๋ฉ”์ธ ํŠน์ • ์–ธ์–ด(DSL)๋ฅผ ๊ฐœ๋ฐœํ•˜์—ฌ ์ƒ๋ฌผํ•™์  ๊ฐœ๋…์„ ํ˜•์‹ํ™”ํ•˜๊ณ , ์ด๋ฅผ ํ†ตํ•ด ๋น„์ „๋ฌธ๊ฐ€๋„ ์‰ฝ๊ฒŒ ์ ‘๊ทผํ•  ์ˆ˜ ์žˆ๋Š” ๋ชจ๋ธ ์ฒดํฌ ๋„๊ตฌ๋ฅผ ์ œ๊ณตํ•œ๋‹ค. 1. DSL์˜ ํ•„์š”์„ฑ ์ƒ๋ช…๊ณผํ•™ ๋ถ„์•ผ์—์„œ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ ๊ธฐ๋ฒ•์€ ๋„๋ฆฌ ์‚ฌ์šฉ๋˜๊ณ  ์žˆ์ง€๋งŒ, ์ด๋Š” ํŠน์ • ์กฐ๊ฑด ํ•˜์—๋งŒ ๊ฐ€๋Šฅํ•œ ํ–‰๋™์„ ํƒ์ƒ‰ํ•˜๋Š” ๋ฐ ๊ทธ์น˜๋ฉฐ, ์ „์ฒด์ ์ธ ์‹œ์Šคํ…œ ๋™์ž‘์„ ์™„์ „ํžˆ ์ดํ•ดํ•˜๊ธฐ์—๋Š” ํ•œ๊ณ„๊ฐ€ ์žˆ๋‹ค. ๋ฐ˜๋ฉด, ๋ชจ๋ธ ์ฒดํฌ๋Š”

Computational Engineering Model Logic Computer Science
Jancars formal system for deciding bisimulation of first-order grammars   and its non-soundness

Jancars formal system for deciding bisimulation of first-order grammars and its non-soundness

: 1. ์ฒซ ๋ฒˆ์งธ ์ˆœ์„œ ๋ฌธ๋ฒ•๊ณผ ํ–‰๋™ ์•ŒํŒŒ๋ฒณ์˜ ์ •์˜ ๋…ผ๋ฌธ์€ ์ฒซ ๋ฒˆ์งธ ์ˆœ์„œ ๋ฌธ๋ฒ•์— ๋Œ€ํ•œ ๋น„์‹œ๋ฎฌ๋ ˆ์ด์…˜ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด Jancar์˜ ํ˜•์‹ ์‹œ์Šคํ…œ์„ ๊ฒ€ํ† ํ•œ๋‹ค. ์ด ๊ณผ์ •์—์„œ ํ–‰๋™ ์•ŒํŒŒ๋ฒณ A์™€ ์ค‘๊ฐ„ ๋ผ๋ฒจ ์•ŒํŒŒ๋ฒณ T, ๊ทธ๋ฆฌ๊ณ  ๋งต LAB A: T โ†’ A๋ฅผ ์ •์˜ํ•œ๋‹ค. ์ด๋Ÿฌํ•œ ์ •์˜๋Š” ์ฒซ ๋ฒˆ์งธ ์ˆœ์„œ ๋ฌธ๋ฒ• G (N, A, R)์„ ๊ตฌ์„ฑํ•˜๋Š” ๋ฐ ํ•„์š”ํ•œ ๊ธฐ๋ณธ ์š”์†Œ๋ฅผ ์ œ๊ณตํ•˜๋ฉฐ, ์—ฌ๊ธฐ์„œ N์€ ๋น„ํ„ฐ๋ฏธ๋„ ์ง‘ํ•ฉ, A๋Š” ํ–‰๋™ ์•ŒํŒŒ๋ฒณ, ๊ทธ๋ฆฌ๊ณ  R์€ ๊ทœ์น™ ์ง‘ํ•ฉ์ด๋‹ค. 2. Jancar ํ˜•์‹ ์‹œ์Šคํ…œ์˜ ๊ฐœ์š” Jancar์˜ ํ˜•์‹ ์‹œ์Šคํ…œ์€

Computer Science Formal Languages Logic System

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