∪ is for “union”, aka “disjunction for sets”, ∈ is for “includes”, ⊂is for “subset”, don’t confuse ⊂ with ⊆, which also allows for both operands to be the same set.
Difference between ∈ and ⊂ is that former takes an element and a set as operands, latter takes two sets.
I don’t believe the current paper defines a way to describe “bdsm leaning”, but for “bottoms” you can easily define x, x ∈ H, such that there exists at least one h, h ∈ H, f(h,x) > 0 and no h', h' ∈ H, f(x, h') > 0. If the second condition is not met, conventionally x is regarded to be a “swap”, if the first one is not met, we have a “top”. Hope that helps.
∪ is for “union”, aka “disjunction for sets”, ∈ is for “includes”, ⊂is for “subset”, don’t confuse ⊂ with ⊆, which also allows for both operands to be the same set.
Difference between ∈ and ⊂ is that former takes an element and a set as operands, latter takes two sets.
What does physical exercise of bdsm leaning bottoms have to do with this
I don’t believe the current paper defines a way to describe “bdsm leaning”, but for “bottoms” you can easily define
x,x ∈ H, such that there exists at least oneh,h ∈ H,f(h,x) > 0and noh',h' ∈ H,f(x, h') > 0. If the second condition is not met, conventionallyxis regarded to be a “swap”, if the first one is not met, we have a “top”. Hope that helps.Sub-set