ConceptNonsensical termModified just nowProperties 4Hide BooksChapter 3. Untyped arithmetic expressions JourneyProgramming Language Theory Statusmastered Tagssemanticssyntax grammarExample: In the Untyped calculus of booleans and numbers, the followings are nonsensical:succ tru\text{succ}\ \text{tru}succ truif 1 then ...\text{if}\ 1\ \text{then}\ ...if 1 then ... Previous in ConceptsNominal typing structural typingNext in Concepts Normal form