If and only if
This page lists the items of the Wikipedia article If and only if in their order, and the nodes of Math 2.0 that have them. The text of the article is not on this site. The items come from revision 1364778681, with the assessment Start/Mid.
| Outcome | Items |
|---|---|
| deferred | 4 |
| attached | 1 |
The gap signals of the article are S1,S2,S5,S6,S8,S9.
| Item | Kind | Name | Outcome | Nodes | Reason |
|---|---|---|---|---|---|
| subject | definition | If and only if | deferred until 2027-05-01 | the item has the flag informal (WP9.2) | |
| #CX3O | proof | Proofs | attached | ||
| #NSN3 | unknown | All and only | deferred until 2027-05-01 | the kind of the item is unknown | |
| #REU2 | definition | Definition | deferred until 2027-05-01 | the cue heading names a section and not one item | |
| #ZNA2 | definition | Notation | deferred until 2027-05-01 | the cue heading names a section and not one item |
Refer to Wikipedia articles and their nodes for the other articles.