Definition:Substitution


 * Definition:Substitution (Formal Systems)
 * Definition:Substitution for Well-Formed Part
 * Definition:Substitution for Letter
 * Definition:Alphabetic Substitution
 * Definition:Substitution of Term
 * Definition:Substitution for Metasymbol
 * Definition:Substitution (Mathematical Logic)

Also see

 * Definition:Replacement