Relations and functions as structures
A relation on a set is a rule connecting pairs of elements, and one important kind is an equivalence relation: reflexive (every element relates to itself), symmetric, and transitive. Having the same remainder when divided by 3 is an equivalence relation on the integers: it splits every integer into exactly one of 3 groups, like {...,-3,0,3,6,...}, based on that shared remainder.
This explanation is AI-generated and can occasionally be wrong.
Vibistic AI
🔒 We never store your messages. The free built-in AI runs through Vibistic's own server, on Cloudflare's own AI infrastructure. You can also add your own API key to send messages straight from your browser to your AI provider instead.
Your notes
Test your knowledge
This test is AI-generated and can occasionally be wrong. If something looks off, use Report below.
No API key configured yet. Clicking below will ask whether to add one or take a free version of this test when one is available.