type
type: "AssertExpression" | "Assignation" | "Assignations" | "AtomSymbol" | "BooleanExpression" | "Expression" | "FunctionCall" | "MultExpression" | "NaturalNumber" | "NaturalVector" | "Operation" | "Range" | "RelationOp" | "Relations" | "Root" | "ScientificNumber" | "SignedExpression" | "SumExpression" | "Symbol" = "Root"