substitutivity
A logical relationship in which two terms can be mutually substituted without…A logical relationship in which two terms can be mutually substituted without affecting the truth value of any propositions in which the terms occur, thereby establishing that the terms are identical.
Meaning
1 senses(uncountable)A logical relationship in which two terms can be mutually substituted without affecting the truth value of any propositions in which the terms occur, thereby establishing that the terms are identical.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable