Substitution

Substitution may refer to:

Science and mathematics

• Attribute substitution, psychological process thought to underlie a number of cognitive biases and perceptual illusions.
• Base-pair substitution or point mutation, a type of mutation
• Integration by substitution, a method for finding antiderivatives and integrals
• String substitution, a mapping of letters in an alphabet to languages
• Substitution (algebra), replacing occurrences of some symbol by a given value
• Substitution (logic), a syntactic transformation on strings of symbols of a formal language
• Substitution cipher, a method of encryption
• Substitution method, a method of measuring the transmission loss of a fibre
• Substitution reaction, where a functional group in a chemical compound is replaced by another group
• Substitution, a process in which an allele arises and undergoes fixation

Other uses

• Chord substitution, in music, swapping one chord for a related one within a chord progression
• Substitution (economics), switching between alternative consumable goods as their relative prices change
• Substitution (law), the replacement of a judge
• Substitution (poetry), a variation in poetic scansion
• "Substitution" (song), a 2009 song by Silversun Pickups
• Substitution (sport), where a sports team is able to change one player for another during a match
• Substitution (theatre), an acting methodology
• Tritone substitution, in music, reinterpreting a chord via a new root note located an augmented fourth or diminished fifth distant from the root of the original interpretation

Within Wikipedia

• Help:Substitution, help performing substitution on Wikipedia pages
• Special:ExpandTemplates, page that shows what will result from substitution
• Wikipedia:Substitution, where, when, how, and what about using substitution on Wikipedia

See also

• Substitute (disambiguation)
• Substitution therapy or opiate replacement therapy
• Penal substitution, a theory of the atonement within Christian theology
• Chord substitution, the use of a chord in the place of another related chord
• Import substitution industrialization, a trade and economic policy
• Simultaneous substitution, a practice requiring Canadian television distribution companies to substitute a non-local station signal with the local signal