{"action":"created","issue":{"url":"https://api.github.com/repos/sympy/sympy/issues/8751","labels_url":"https://api.github.com/repos/sympy/sympy/issues/8751/labels{/name}","comments_url":"https://api.github.com/repos/sympy/sympy/issues/8751/comments","events_url":"https://api.github.com/repos/sympy/sympy/issues/8751/events","html_url":"https://github.com/sympy/sympy/issues/8751","id":53447970,"number":8751,"title":"limit(Abs(x)/(x), x, 0) evaluates to 1, without knowing x is zero or not.","user":{"login":"aktech","id":5647941,"avatar_url":"https://avatars.githubusercontent.com/u/5647941?v=3","gravatar_id":"","url":"https://api.github.com/users/aktech","html_url":"https://github.com/aktech","followers_url":"https://api.github.com/users/aktech/followers","following_url":"https://api.github.com/users/aktech/following{/other_user}","gists_url":"https://api.github.com/users/aktech/gists{/gist_id}","starred_url":"https://api.github.com/users/aktech/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aktech/subscriptions","organizations_url":"https://api.github.com/users/aktech/orgs","repos_url":"https://api.github.com/users/aktech/repos","events_url":"https://api.github.com/users/aktech/events{/privacy}","received_events_url":"https://api.github.com/users/aktech/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/sympy/sympy/labels/invalid","name":"invalid","color":"eb6420"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":7,"created_at":"2015-01-05T21:08:52Z","updated_at":"2015-01-06T12:55:50Z","closed_at":"2015-01-06T10:47:33Z","body":"```python\r\nx  = symbols('x')\r\nIn [2]: limit(Abs(x)/(x), x, 0)\r\nOut[2]: 1\r\n```\r\nThis can't be evaluated to 1, until and unless it knows that x is not equal to zero."},"comment":{"url":"https://api.github.com/repos/sympy/sympy/issues/comments/68861692","html_url":"https://github.com/sympy/sympy/issues/8751#issuecomment-68861692","issue_url":"https://api.github.com/repos/sympy/sympy/issues/8751","id":68861692,"user":{"login":"skirpichev","id":2155800,"avatar_url":"https://avatars.githubusercontent.com/u/2155800?v=3","gravatar_id":"","url":"https://api.github.com/users/skirpichev","html_url":"https://github.com/skirpichev","followers_url":"https://api.github.com/users/skirpichev/followers","following_url":"https://api.github.com/users/skirpichev/following{/other_user}","gists_url":"https://api.github.com/users/skirpichev/gists{/gist_id}","starred_url":"https://api.github.com/users/skirpichev/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/skirpichev/subscriptions","organizations_url":"https://api.github.com/users/skirpichev/orgs","repos_url":"https://api.github.com/users/skirpichev/repos","events_url":"https://api.github.com/users/skirpichev/events{/privacy}","received_events_url":"https://api.github.com/users/skirpichev/received_events","type":"User","site_admin":false},"created_at":"2015-01-06T12:55:50Z","updated_at":"2015-01-06T12:55:50Z","body":"On another hand, there is a bug:\r\n```python\r\nIn [1]: Z = Symbol('Z', zero=True)\r\n\r\nIn [2]: Abs(x)/(x)\r\nOut[2]: \r\n│x│\r\n───\r\n x \r\n\r\nIn [3]: Abs(Z)/(Z)\r\nOut[3]: 0\r\n```\r\n"}}