validly

Everyday

1. Validly means in a way that is valid: officially correct, accepted by the rules or the law. tree →
2. Validly means in a way that is logically sound, with reasons that really lead to the conclusion. tree →

In the lessons

In maths and logic: an argument is validly made when the conclusion follows from the facts. In law and voting: a validly signed form, validly cast votes. In science: a result is validly measured when the test is fair.

Examples

• The votes were validly cast, so they all count. tree →
• The form must be validly signed by a parent. tree →
• Can you validly conclude that all cats are black from one black cat? No! tree →
• The test was validly done with fair rules. tree →
• Only validly bought tickets are accepted. tree →
• The passport was validly issued. tree →

Note

From «valid» + «-ly». Opposite: «invalidly». In logic, «valid» means the reasoning works, even if a starting fact is wrong.