{"action":"reopened","issue":{"url":"https://api.github.com/repos/arademaker/LP-2015.2/issues/12","labels_url":"https://api.github.com/repos/arademaker/LP-2015.2/issues/12/labels{/name}","comments_url":"https://api.github.com/repos/arademaker/LP-2015.2/issues/12/comments","events_url":"https://api.github.com/repos/arademaker/LP-2015.2/issues/12/events","html_url":"https://github.com/arademaker/LP-2015.2/issues/12","id":104241217,"number":12,"title":"Symbolic Differentiation","user":{"login":"arademaker","id":86403,"avatar_url":"https://avatars.githubusercontent.com/u/86403?v=3","gravatar_id":"","url":"https://api.github.com/users/arademaker","html_url":"https://github.com/arademaker","followers_url":"https://api.github.com/users/arademaker/followers","following_url":"https://api.github.com/users/arademaker/following{/other_user}","gists_url":"https://api.github.com/users/arademaker/gists{/gist_id}","starred_url":"https://api.github.com/users/arademaker/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/arademaker/subscriptions","organizations_url":"https://api.github.com/users/arademaker/orgs","repos_url":"https://api.github.com/users/arademaker/repos","events_url":"https://api.github.com/users/arademaker/events{/privacy}","received_events_url":"https://api.github.com/users/arademaker/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":7,"created_at":"2015-09-01T10:59:40Z","updated_at":"2015-09-06T17:01:27Z","closed_at":null,"body":"Vide https://goo.gl/2FDbmt\r\n\r\nImplementar adaptando para Common Lisp as rotinas básicas de derivação apresentadas na seção. Para isso, dentro do diretório ```sicp```crie um novo arquivo chamado ```deriv.lisp```. \r\n\r\nEm seguida, implementar exercícios 2.56 e 2.57. \r\n\r\nNote que esta tarefa pode ser feita por mais de um aluno sync seus repositórios antes de submeter o pull request final para mim. Ou podem submeter pull requests intermediários para mim.\r\n\r\n"}}