Index - T
| tail | Clean.Core, Clean |
| take | Clean.Core, Clean |
| takeWhile | Clean.Core, Clean |
| tan | Clean.Core, Clean |
| tanh | Clean.Core, Clean |
| tell | Clean.Monad, Clean |
| to | Clean.Core, Clean |
| toEnum | Clean.Core, Clean |
| toInteger | Clean.Core, Clean |
| toRational | Clean.Core, Clean |
| transpose | Clean.Traversable, Clean |
| Traversable | Clean.Traversable, Clean |
| Traversal | Clean.Lens |
| Traversal' | Clean.Lens |
| traverse | Clean.Traversable, Clean |
| True | Clean.Core, Clean |
| truncate | Clean.Core, Clean |