{"action":"opened","issue":{"url":"https://api.github.com/repos/leanprover/tutorial/issues/95","labels_url":"https://api.github.com/repos/leanprover/tutorial/issues/95/labels{/name}","comments_url":"https://api.github.com/repos/leanprover/tutorial/issues/95/comments","events_url":"https://api.github.com/repos/leanprover/tutorial/issues/95/events","html_url":"https://github.com/leanprover/tutorial/issues/95","id":71358450,"number":95,"title":"find_decl hangs the web prover","user":{"login":"htzh","id":5956967,"avatar_url":"https://avatars.githubusercontent.com/u/5956967?v=3","gravatar_id":"","url":"https://api.github.com/users/htzh","html_url":"https://github.com/htzh","followers_url":"https://api.github.com/users/htzh/followers","following_url":"https://api.github.com/users/htzh/following{/other_user}","gists_url":"https://api.github.com/users/htzh/gists{/gist_id}","starred_url":"https://api.github.com/users/htzh/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/htzh/subscriptions","organizations_url":"https://api.github.com/users/htzh/orgs","repos_url":"https://api.github.com/users/htzh/repos","events_url":"https://api.github.com/users/htzh/events{/privacy}","received_events_url":"https://api.github.com/users/htzh/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-04-27T18:02:06Z","updated_at":"2015-04-27T18:02:06Z","closed_at":null,"body":"If one run the following example from chapter 5:\r\n```\r\nimport data.nat\r\n\r\nopen nat\r\nfind_decl ((_ * _) = (_ * _))\r\nfind_decl (_ * _) = _, +assoc\r\nfind_decl (_ * _) = _, -assoc\r\n\r\nfind_decl _ < succ _, +imp, -le\r\n```\r\nthe prover just hangs. Furthermore no other example will run either. I need to refresh to restart lean.js. This happens both on Chrome and Firefox. I checked that find_decl works on my local native emacs/lean installation so this appears to be an issue for the web version only.\r\nThis is with the newest build of the web version after https://github.com/leanprover/lean/issues/561 was resolved."}}