  In this paper, types of Leibniz Rule for Riemann-Liouville Variable-Order
fractional integral and derivative Operator is developed. The product rule,
quotient rule, and chain rule formulas for both integral and differential
operators are established. In particular, there are four types of product rule
formulas: Product rule type-I, Product rule type-II, Product rule type-III, and
Product rule type-Iv. Quotient rule type-I, quotient rule type-II, quotient
rule type-III, and quotient rule type-Iv formulas developed from product rule
types. There are four types of chain rule formulas: chain rule type-I, chain
rule type-II, chain rule type-III, and chain rule type-Iv.
