free variable
Mathematics and Logic
noun
A variable whose occurrence in an expression is not bound by any quantifier, i.e. it is free to take any value and can be freely substituted.
Origin
1920s; earliest use found in Mind.
- curtain call
- curtain fire
- curtain lecture
- curtain of fire
- curtain-raiser
- curtain ring
- curtain-sided
- curtain-sider
- curtain speech
- curtain time
- curtain-up
- curtain wall
- curtal
- curtana
- curtesy
- curtilage
- Curtin, John
- Curtis, Benjamin Robbins
- Curtiss, Glenn
- curtly
- curtness
- curtsey
- curtsy
- curule
- curvaceous