{"id":22348306,"url":"https://github.com/juanbono/concrete-semantics-exercises","last_synced_at":"2026-01-30T01:15:57.595Z","repository":{"id":79425738,"uuid":"96072637","full_name":"juanbono/concrete-semantics-exercises","owner":"juanbono","description":"Learning Isabelle/HOL","archived":false,"fork":false,"pushed_at":"2018-01-31T06:26:53.000Z","size":13,"stargazers_count":3,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-06-03T14:41:28.990Z","etag":null,"topics":["exercises","isabelle","semantics"],"latest_commit_sha":null,"homepage":"","language":"Isabelle","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/juanbono.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2017-07-03T05:16:00.000Z","updated_at":"2022-01-08T20:27:27.000Z","dependencies_parsed_at":null,"dependency_job_id":"7aaedc98-6663-42cd-8949-023a894297d1","html_url":"https://github.com/juanbono/concrete-semantics-exercises","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/juanbono/concrete-semantics-exercises","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/juanbono%2Fconcrete-semantics-exercises","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/juanbono%2Fconcrete-semantics-exercises/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/juanbono%2Fconcrete-semantics-exercises/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/juanbono%2Fconcrete-semantics-exercises/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/juanbono","download_url":"https://codeload.github.com/juanbono/concrete-semantics-exercises/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/juanbono%2Fconcrete-semantics-exercises/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28892890,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-29T21:06:44.224Z","status":"ssl_error","status_checked_at":"2026-01-29T21:06:42.160Z","response_time":59,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["exercises","isabelle","semantics"],"created_at":"2024-12-04T10:13:23.853Z","updated_at":"2026-01-30T01:15:57.573Z","avatar_url":"https://github.com/juanbono.png","language":"Isabelle","funding_links":[],"categories":[],"sub_categories":[],"readme":"# concrete-semantics-exercises\r\n\r\nI'm learning the [Isabelle/HOL theorem prover](https://www.cl.cam.ac.uk/research/hvg/Isabelle/) and reading [Concrete Semantics by Tobias Nipkow and Gerwin Klein](http://www.concrete-semantics.org/) for that purpose.\r\n\r\n## Useful resources for learning Isabelle/HOL\r\n* [Functional Data Structures Course](http://www21.in.tum.de/teaching/FDS/SS17/)\r\n* [Isabelle's Tutorial](https://isabelle.in.tum.de/doc/tutorial.pdf)\r\n* [Archive of Formal Proofs](https://www.isa-afp.org/)\r\n\r\n\r\n-------\r\n\r\nNote: I don't know if I'm going to finish every exercise from the book. My goal is to learn PL semantics and how to formalize it (and have a lot of fun on the way).\r\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjuanbono%2Fconcrete-semantics-exercises","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjuanbono%2Fconcrete-semantics-exercises","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjuanbono%2Fconcrete-semantics-exercises/lists"}