doge57
doge57 t1_ja1olza wrote
Reply to ELI5: (1) = Equal Sign (2) ≡ Equivalence, Identity (3) ↔ Material BiConditional (4) ⇔ Logical BiConditional by 3neth
I’ll just add more examples for some parts since other people explained it pretty well.
The triple bar for equivalence is especially useful for modular arithmetic. An example of that is on a clock, 4 am and 4 pm are equivalent so comparing 24 hour time to 12 hour time, 4 is equivalent to 16 (mod 12).
A logical biconditional means “if and only if” so the two things necessarily mean the other is true. A shape is a triangle if and only if it has exactly 3 sides. That means that any shape with exactly 3 sides is a triangle and a triangle has exactly 3 sides.
doge57 t1_ja3p28t wrote
Reply to comment by Gullible-Flounder-79 in ELI5: if you’re lactose intolerant, why does the lactose cause bowel distress instead of passing through inertly? by chemstu69
Even without the bacteria, lactose is osmotically active so it limits water absorption by your intestines which causes diarrhea just like sorbitol