That follows because if you can two color the graph so that edges only connect different colors, you just assign male to one color and female to the other.

This means there's a tone of mathematical identities describing this. Wikipedia has a good introduction.

https://en.m.wikipedia.org/wiki/Bipartite_graph

[–] DaGeek247@fedia.io 5 points 2 months ago (2 children)

Very neat. But the fun part of this is that if you're poly/into more than one person, you are now a part of the LGBT group, not the straight one.

Note the above image, where the triangle shape requires that every person be into another person, with the tension being that if it's cishet, they have to choose only one person.

We aren't checking to see if a shape with LGBT people works, we know those do. We are checking to see if a cishet triangle is even possible.

[–] radicalautonomy@lemmy.world 9 points 2 months ago

A relationship isn't LGBT; a person is. A cishet man who has two bi/pan female partners who date each other isn't LGBT because his partners are queer.

[–] desktop_user@lemmy.blahaj.zone 5 points 2 months ago (2 children)

isn't cis het an identity, therefore someone could identify as heterosexual an be in a polycule, only fucking members of the opposite sexual.

[–] captainlezbian@lemmy.world 3 points 2 months ago (1 children)

Yes. My girlfriend’s husband is cishet, it has nothing to do with his willingness to have multiple partners, just the fact that he’s an amab man who exclusively is attracted to women. His wife happens to be pansexual and dating a lesbian, but that has no impact on his orientation

[–] davidagain@lemmy.world 2 points 2 months ago

It took me a while to figure out who your girlfriend's cishet husband's pansexual wife's lesbian dating partner was!

[–] DaGeek247@fedia.io -2 points 2 months ago

Sure buddy.