| Display title | Indicator function |
| Default sort key | Indicator function |
| Page length (in bytes) | 17,917 |
| Namespace ID | 0 |
| Page ID | 240790 |
| Page content language | en - English |
| Page content model | wikitext |
| Indexing by robots | Allowed |
| Number of page watchers | 148 |
| Number of page watchers who visited in the last 30 days | 8 |
| Number of redirects to this page | 7 |
| Counted as a content page | Yes |
| Wikidata item ID | Q371983 |
| Local description | Mathematical function characterizing set membership |
| Central description | function that returns 1 if an element is present in a specified subset and 0 if absent; naturally isomorphic with a set's subsets |
| Page image |  |
| Page views in the past 30 days | |
| Edit | Allow all users (no expiry set) |
| Move | Allow all users (no expiry set) |
| Page creator | Pcb21 (talk | contribs) |
| Date of page creation | 20:15, 5 June 2003 |
| Latest editor | 2604:2d80:4d89:9800:fc03:b86c:9084:2cc8 (talk) |
| Date of latest edit | 02:42, 11 September 2025 |
| Total number of edits | 335 |
| Recent number of edits (within past 30 days) | 0 |
| Recent number of distinct authors | 0 |
| Hidden categories (7) | This page is a member of 7 hidden categories (help):
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| Transcluded templates (107) | Pages transcluded onto the current version of this page (help):
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| Wikidata entities used in this page | |
