{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,16]],"date-time":"2025-06-16T16:04:49Z","timestamp":1750089889437},"reference-count":0,"publisher":"EasyChair","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>This paper presents an algorithm that redirects proofs by contradiction. The input is a refutation graph, as produced by an automatic theorem prover (e.g., E, SPASS, Vampire, Z3); the output is a direct proof expressed in natural deduction extended with case analyses and nested subproofs. The algorithm is implemented in Isabelle\u2019s Sledgehammer, where it enhances the legibility of machine-generated proofs.<\/jats:p>","DOI":"10.29007\/wm8b","type":"proceedings-article","created":{"date-parts":[[2018,1,23]],"date-time":"2018-01-23T17:59:05Z","timestamp":1516730345000},"page":"11--6","source":"Crossref","is-referenced-by-count":6,"title":["Redirecting Proofs by Contradiction"],"prefix":"10.29007","volume":"14","author":[{"given":"Jasmin Christian","family":"Blanchette","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"11545","event":{"name":"PxTP 2013. Third International Workshop on Proof Exchange for Theorem Proving"},"container-title":["EPiC Series in Computing"],"original-title":[],"deposited":{"date-parts":[[2018,1,23]],"date-time":"2018-01-23T17:59:08Z","timestamp":1516730348000},"score":1,"resource":{"primary":{"URL":"https:\/\/easychair.org\/publications\/paper\/d6nT"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[null]]},"references-count":0,"URL":"https:\/\/doi.org\/10.29007\/wm8b","relation":{},"ISSN":["2398-7340"],"issn-type":[{"type":"print","value":"2398-7340"}],"subject":[]}}