Conjunctions of disjunctions equivalent to disjunctions of conjunctions?
98320
True or false? $\bigwedge_{i \in I} \bigvee_{j \in J}a_{i,j} \equiv \bigvee_{j \in J} \bigwedge_{i \in I}a_{i,j}$
129270
cleveref: changing conjunction for pair
48213
proving logical equivalence $(P \leftrightarrow Q) \equiv (P \wedge Q) \vee (\neg P \wedge \neg Q)$
143028
"out of" vs. duplicated "from"
137921
Reflexivity, Transitivity, Symmertry of the square of an relation
65910
Reflexivity of equivalence relations
18462
Transitivity check vs. Transitive Closure
25997
Conditions Equivalent to Injectivity
103780
Independence of disjoint events
87928
Proof of logical equivalence of biconditional and other proposition
140724
How to prove two equivalence classes are disjoint?
23041
Why: a relative adverb, a conjunction ... or both?
89506
Union of disjoint sets : Equivalence relations
67683
Building logical criteria (with AND , OR, etc)
66563
Is $ (A∪B)×(C∩D)=(A∪C)×(B∪D)$ true for all sets A,B,C and D?
25218
Equivalent of "both" when referring to three or more items?
64392
Should we use "like" as a conjunction?