Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
Still with the same A, B : compute A setminus B (elements in A but not in B )
Still with the same A, B : compute A setminus B (elements in A but not in B )
Natural Language
Math Input
Extended Keyboard