Can a discrete variable take on multiple values, and thus truth values, simultaneously in the mathematical proof below or elsewhere?
11629
Can a discrete variable take on multiple values, and thus truth values, simultaneously in the mathematical proof below or elsewhere?
49994
Deduction of $\forall y \exists x (x=y)$
141496
Could someone make the proof into a hinted exercise?
145466
Is this a valid mathematical proof?
24478
What is the name of this theorem, and are there any caveats?
157733
Are positive real numbers $x,y$ allowed to be taken out during this proof?
47222
Soundness of a rule of a proof system with respect to the truth tables?
52322
Implication in mathematics - How can A imply B when A is False?
75387
A proof that $1=2$. May I know why it’s false?
127069
Discrete Math - Counting
140167
Proving $A+A'B=A+B$ without truth tables
91545
A stronger version of discrete "Liouville's theorem"
129352
Duality discrete math problem
101232
Does proper map $f$ take discrete sets to discrete sets?
6119
If both $P$ and $Q$ are true , how can I tell that $P$ implies $Q$?
146754
JavaScript: can a variable have multiple values?
100399
A doubt with a part of a certain proof.