{"action":"opened","issue":{"url":"https://api.github.com/repos/MetaCoq/MetaCoq/issues/10","labels_url":"https://api.github.com/repos/MetaCoq/MetaCoq/issues/10/labels{/name}","comments_url":"https://api.github.com/repos/MetaCoq/MetaCoq/issues/10/comments","events_url":"https://api.github.com/repos/MetaCoq/MetaCoq/issues/10/events","html_url":"https://github.com/MetaCoq/MetaCoq/issues/10","id":113432110,"number":10,"title":"Name in nu operator","user":{"login":"beta-ziliani","id":5183634,"avatar_url":"https://avatars.githubusercontent.com/u/5183634?v=3","gravatar_id":"","url":"https://api.github.com/users/beta-ziliani","html_url":"https://github.com/beta-ziliani","followers_url":"https://api.github.com/users/beta-ziliani/followers","following_url":"https://api.github.com/users/beta-ziliani/following{/other_user}","gists_url":"https://api.github.com/users/beta-ziliani/gists{/gist_id}","starred_url":"https://api.github.com/users/beta-ziliani/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/beta-ziliani/subscriptions","organizations_url":"https://api.github.com/users/beta-ziliani/orgs","repos_url":"https://api.github.com/users/beta-ziliani/repos","events_url":"https://api.github.com/users/beta-ziliani/events{/privacy}","received_events_url":"https://api.github.com/users/beta-ziliani/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-10-26T19:25:00Z","updated_at":"2015-10-26T19:25:00Z","closed_at":null,"body":"Currently the `tnu` operator takes a function and uses the name of the variable to push that in the context. This is fine in a scenario as the following:\r\n```\r\ntnu (fun x => t x)\r\n```\r\nHere, `t x` is executed in the context extended with `x`, respecting `x`'s name. Now if we create instead a definition\r\n```\r\nDefinition bla t := tnu (fun z => t z).\r\n```\r\nthen there is no way to tell MetaCoq to use `x` as a name instead of `z`. I suggest to add a name (string) to the `tnu` operator."}}