Invalid
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Look up invalid in Wiktionary, the free dictionary.
Invalid may refer to:
People
[edit]- Patient, a sick person
- An invalid, one confined to home or bed because of disability or injury
Opposite of "valid"
[edit]- Validity (logic), in logic, true premises cannot lead to a false conclusion
- Validity (statistics), a measure which is measuring what it is supposed to measure
Other uses
[edit]- .invalid, a top-level Internet domain not intended for real use
- Invalid (film), a 2023 Slovak black comedy movie