New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Shouldn't ASTAll and ASTAny should return YES for empty containers? #53

Open

mixtly87 opened this issue Sep 28, 2017 · 1 comment

mixtly87 commented Sep 28, 2017

I find it odd that All and Any methods return NO for empty sets. Formally, I believe, YES should be returned in such cases; according to: https://en.wikipedia.org/wiki/Vacuous_truth#Vacuous_truths_in_mathematics

Additionally, I find I often need to cover an empty-container case manually in my code, because Asterism doesn't return YES in those cases.

Owner

robb commented Oct 3, 2017

Very good point, would you be interested in submitting a Pull Request?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment