Kaomojis

🍎🍎🍎→3️⃣

#counting objects #how many #quantity #enumeration #set size #total

∅≠{✨}|A|=🔢

#empty set #null set #non-empty set #cardinality #set size #finite set #set properties

∑=1️⃣5️⃣0️⃣🔣

#sum total #count equals 150 #total symbols #summation symbol #symbol quantity #set size

{🍎🍊🍋}→3️⃣

#set size #counting elements #finite set #cardinality definition #number of elements #mapping to quantity

|{👥}|=#️⃣

#cardinality notation #set size #number of elements #magnitude of set #group size