| icNames | Language.Drasil.Choices, Language.Drasil.Code | 
| implementation | Language.Drasil.Code.ExternalLibrary, Language.Drasil.Code | 
| implementationFill | Language.Drasil.Code.ExternalLibraryCall, Language.Drasil.Code | 
| ImplementationType | Language.Drasil.Choices, Language.Drasil.Code | 
| Implements | Language.Drasil.Code.ExternalLibrary | 
| implements | Language.Drasil.Mod | 
| ImplementsF | Language.Drasil.Code.ExternalLibraryCall, Language.Drasil.Code | 
| implementType | Language.Drasil.Code.Imperative.ReadMe.Import | 
| implType | Language.Drasil.Code.Imperative.DrasilState | 
| Import | Language.Drasil.Mod | 
| imports | Language.Drasil.Code.ExtLibImport | 
| impType | Language.Drasil.Choices, Language.Drasil.Code | 
| includeExt | Language.Drasil.Code.Imperative.Build.AST | 
| inCodePackage | Language.Drasil.Code.Imperative.Build.AST | 
| inConsFuncDesc | Language.Drasil.Code.Imperative.Descriptions | 
| indepVar | Language.Drasil.Data.ODEInfo, Language.Drasil.Code | 
| inFileName | Language.Drasil.Code.CodeQuantityDicts | 
| inFmtFuncDesc | Language.Drasil.Code.Imperative.Descriptions | 
| Initializer | Language.Drasil.Mod | 
| initSolListFromArray | Language.Drasil.Code.ExternalLibrary, Language.Drasil.Code | 
| initSolListFromArrayFill | Language.Drasil.Code.ExternalLibraryCall, Language.Drasil.Code | 
| initSolListWithVal | Language.Drasil.Code.ExternalLibrary, Language.Drasil.Code | 
| initSolListWithValFill | Language.Drasil.Code.ExternalLibraryCall, Language.Drasil.Code | 
| initSolWithVal | Language.Drasil.Code.ExternalLibrary, Language.Drasil.Code | 
| initSolWithValFill | Language.Drasil.Code.ExternalLibraryCall, Language.Drasil.Code | 
| initVal | Language.Drasil.Data.ODEInfo, Language.Drasil.Code | 
| Inline | Language.Drasil.Choices, Language.Drasil.Code | 
| inlineArg | Language.Drasil.Code.ExternalLibrary, Language.Drasil.Code | 
| inlineNamedArg | Language.Drasil.Code.ExternalLibrary, Language.Drasil.Code | 
| inParams | Language.Drasil.Code.CodeQuantityDicts | 
| Input | Language.Drasil.CodeSpec | 
| inputClassDesc | Language.Drasil.Code.Imperative.Descriptions | 
| inputConstraintsDesc | Language.Drasil.Code.Imperative.Descriptions | 
| InputConstraintsFn | Language.Drasil.Choices | 
| InputConstraintsMod | Language.Drasil.Choices | 
| inputConstructorDesc | Language.Drasil.Code.Imperative.Descriptions | 
| InputFormat | Language.Drasil.Choices | 
| inputFormatDesc | Language.Drasil.Code.Imperative.Descriptions | 
| inputOutput | Language.Drasil.Code.Imperative.ReadMe.Import | 
| InputParameters | Language.Drasil.Choices | 
| inputParametersDesc | Language.Drasil.Code.Imperative.Descriptions | 
| inputsO | Language.Drasil.CodeSpec, Language.Drasil.Code | 
| inputStructure | Language.Drasil.Choices, Language.Drasil.Code | 
| inStruct | Language.Drasil.Code.Imperative.DrasilState | 
| InternalConcept | Language.Drasil.Choices | 
| interp | Language.Drasil.Code.Imperative.Build.AST | 
| interpMM | Language.Drasil.Code.Imperative.Build.AST | 
| Interpreter | Language.Drasil.Code.Imperative.Build.AST | 
| InterpreterCommand | Language.Drasil.Code.Imperative.Build.AST | 
| InterpreterOption | Language.Drasil.Code.Imperative.Build.AST | 
| interwovenLists | Language.Drasil.Code.DataDesc | 
| invalidOS | Language.Drasil.Code.Imperative.ReadMe.Import | 
| isJunk | Language.Drasil.Code.DataDesc | 
| isLine | Language.Drasil.Code.DataDesc | 
| isLines | Language.Drasil.Code.DataDesc |