Monoid

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a monad is a monoid in the category of endofunctors .
a picture of a bear with the words that is if you assumed the axiom of choice below it
a girl in a purple dress is standing in front of a sign that says " continue "
a woman in a white dress and purple tights is standing in a street
a book is open to a page that says ' i 'm a wizard ' on it
a girl in a purple dress and top hat is kneeling down
a woman in a top hat is kneeling down on the ground
a man with gray hair and a white beard looks at the camera with his eyes closed
a woman in a purple dress is kneeling down holding a stuffed animal
a black and white photo of a man with a beard and long hair
a girl in a blue cape is holding a pair of blue boxing gloves in front of a sign that says teen esab
    a girl in a purple dress is dancing in a video game with the number 0 on the bottom right
    a woman in a blue cape is holding a blue object
    a woman in a top hat is kneeling down holding a teddy bear
    a woman in a purple dress is dancing in a video game with the number 0 on the bottom
    a woman in a blue dress is dancing in front of a blue light