Valid vs Usable - What's the difference?
valid | usable |
Well grounded or justifiable, pertinent.
*{{quote-magazine, year=2012, month=March-April
, author=(Jan Sapp)
, title=Race Finished
, volume=100, issue=2, page=164
, magazine=(American Scientist)
Acceptable, proper or correct.
Related to the current topic, or presented within context, relevant.
(logic) Of a formula or system: such that it evaluates to true regardless of the input values.
(logic) Of an argument: whose conclusion is always true whenever its premises are true.
As adjectives the difference between valid and usable
is that valid is well grounded or justifiable, pertinent while usable is capable of being used.valid
English
Adjective
(en adjective)citation, passage=Few concepts are as emotionally charged as that of race. The word conjures up a mixture of associations—culture, ethnicity, genetics, subjugation, exclusion and persecution. But is the tragic history of efforts to define groups of people by race really a matter of the misuse of science, the abuse of a valid biological concept?}}
- I will believe him as soon as he offers a valid answer.
- A valid format for the date is MM/DD/YY.
- Do not drive without a valid license.
- An argument is valid if and only if the set consisting of both (1) all of its premises and (2) the contradictory of its conclusion is inconsistent.
