Index - I
| inhandle | Turtle.Prelude, Turtle |
| inplace | Turtle.Prelude, Turtle |
| inproc | Turtle.Prelude, Turtle |
| inprocWithErr | Turtle.Prelude, Turtle |
| input | Turtle.Prelude, Turtle |
| inshell | Turtle.Prelude, Turtle |
| inshellWithErr | Turtle.Prelude, Turtle |
| invert | Turtle.Pattern, Turtle |
| IsString | Turtle |