Mental arithmetic in Mixture and allegation
99222
Alligation or mixture
53199
First-Order Logic: Formalisation of the phrase "Not all that glitters is gold"
36114
conjunction of disjunctions and disjunction of conjunctions
157748
Why should the equality of mixed partials be "intuitively obvious"?
126713
Strong induction and vacuous truth
16911
On cloning minds, persons and selves
129062
Distinguishing definitions from equivalences.
87855
Construction of the pre-addition
149976
What is "magic" about the combination of addition and multiplication in formal arithmetic?
101136
The Monty Hall Problem - where does our intuition fail us?
22731
Double Copula or "double is" in professional/technical writing
57672
Trying to get all this terminology straight in logic
83778
An incorrect proof by exhaustion
92147
Coin sequence paradox from Martin Gardner's book
92981
Exercise: Should we trust our naive bayes or a human "guru"?
114642
There is/are for multiple subjects
18287
Distinction between equality, logical equivalence and biconditionality.