⇔

#double arrow #left right double arrow #logical equivalence #biconditional #if and only if #iff #equilibrium arrow

✅≡✅

#ecnelaviuqe #logical equivalence #congruent #exactly the same #identity confirmed #triple bar validation

❓⇔✅

#if and only if #iff #logical equivalence #biconditional #condition

⚖️⟺⚖️

#if and only if #iff #biconditional #logical equivalence #truth balance #formal logic #mathematical logic

🧠/~=🅰️

#lindenbaum-tarski #mathematical logic #quotient structure #logical equivalence #abstract algebra #algebraic logic

{💬}/↔️=🧩

#lindenbaum-tarski #sentences #logical equivalence #algebraic structure #theory