Substitution (mathematics)
Substitution is a fundamental technique where one mathematical expression replaces another, often to simplify problems or reveal hidden structure. It appears across nearly all branches of mathematics.
Meanings
- Substitution (mathematics) (variable replacement) — replacing a variable with a specific value or another expression
- Substitution (mathematics) (algebra) — swapping terms in equations to isolate or solve for unknowns
- Substitution (mathematics) (calculus) — a method for evaluating integrals by changing variables
- Substitution (mathematics) (logic) — replacing symbols in formal expressions while preserving logical structure
- Substitution (mathematics) (permutation) — a rearrangement operation on sets, central to Group theory
Related
Function (mathematics), Syntax, Variable (mathematics), Integral (calculus), Equation, Algebra, Group theory