substitution instance
substitution instance noun: a well-formed formula (wff) that has a constant term in place of a variable; expressed as Q(a/x), where the resulting wff is identical to Q except that the constant a takes the place of every free occurrence of the variable x.
Noun
substitution instance (plural substitution instances)
- A well-formed formula (wff) that has a constant term in place of a variable; expressed as Q(a/x), where the resulting wff is identical to Q except that the constant a takes the place of every free occurrence of the variable x.
- The result of substituting a term a for all free occurrences of the variable x in the formula Q is denoted by Q(a/x).1972, Alonzo Church, Introduction to Mathematical Logic, Princeton University Press, page 78
Antonyms of substitution instance
Forms of substitution instance
| plural | substitution instances |
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Questions about substitution instance
- What does substitution instance mean?
- Substitution instance means a well-formed formula (wff) that has a constant term in place of a variable; expressed as Q(a/x), where the resulting wff is identical to Q except that the constant a takes the place of every free occurrence of the variable x.
- What part of speech is substitution instance?
- Substitution instance is a noun.
- What is the plural of substitution instance?
- The plural of substitution instance is substitution instances.
Words near substitution instance in the dictionary
Source and license
Adapted from Wiktionary: substitution instance (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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