관련 TeX 기호: \parallel → $\displaystyle \parallel$
QQQ 사선기호가 많이 쓰이는데 그건 표준이 뭐지? 슬래시 두개를 // 하면 $\displaystyle //$ 인데 너무 떨어져 있어서 그걸 강제로 negative space로 붙이면 $\displaystyle /\!/$ ....이긴 한데 임시변통일 뿐이고. 
slanted parallel symbol latex ?
slanted parallel symbol latex ?twins - 패럴렐리즘,parallelism 참조.
Sub:
평행공준,parallel_postulate =평행공준,parallel_postulate =,parallel_postulate . 평행공준 parallel_postulate
{
평행공준 - kms.
postul = https://www.kms.or.kr/mathdict/list.html?key=ename&keyword=postul
평행성공준
평행선공준
중에 pagename TBD.
평행공준,parallel_postulate =평행공준,parallel_postulate =,parallel_postulate . 평행공준 parallel_postulate
{
평행공준 - kms.
postul = https://www.kms.or.kr/mathdict/list.html?key=ename&keyword=postul평행성공준
평행선공준
중에 pagename TBD.
parallel postulate
유클리드 5공리와 관련인데 tbw
https://ko.wikipedia.org/wiki/평행선_공준
https://simple.wikipedia.org/wiki/Parallel_postulate
https://en.wikipedia.org/wiki/Parallel_postulate
https://simple.wikipedia.org/wiki/Parallel_postulate
https://en.wikipedia.org/wiki/Parallel_postulate
MKL
절대기하,absolute_geometry {
absolute_geometry ddddddddd }
유클리드_기하,Euclidean_geometry =유클리드_기하,Euclidean_geometry 혹은 =유클리드_기하학,Euclidean_geometry .... Euclidean_geometry
{
Euclidean_geometry
https://simple.wikipedia.org/wiki/Euclidean_geometry
https://en.wikipedia.org/wiki/Euclidean_geometry
}
비유클리드_기하,non-Euclidean_geometry {non-Euclidean_geometry ? }
쌍곡기하,hyperbolic_geometry
{
hyperbolic_geometry
절대기하,absolute_geometry {
absolute_geometry ddddddddd }유클리드_기하,Euclidean_geometry =유클리드_기하,Euclidean_geometry 혹은 =유클리드_기하학,Euclidean_geometry .... Euclidean_geometry
{
Euclidean_geometryhttps://simple.wikipedia.org/wiki/Euclidean_geometry
https://en.wikipedia.org/wiki/Euclidean_geometry
}
비유클리드_기하,non-Euclidean_geometry {
non-Euclidean_geometry ? }쌍곡기하,hyperbolic_geometry
{
hyperbolic_geometryhttps://ko.wikipedia.org/wiki/쌍곡기하학
https://simple.wikipedia.org/wiki/Hyperbolic_geometry
https://en.wikipedia.org/wiki/Hyperbolic_geometry
...
"Hyperbolic geometry"
Hyperbolic geometry
Hyperbolic geometry
}
https://simple.wikipedia.org/wiki/Hyperbolic_geometry
https://en.wikipedia.org/wiki/Hyperbolic_geometry
...
"Hyperbolic geometry"
Hyperbolic geometryHyperbolic geometry}
Up: 공준,postulate
MKL ¶
(physics) cmp: antiparallel / antiparallelism ... antiparallel antiparallelism 
antiparallel antiparallel 
antiparallel antiparallel
chk:
antiparallel antiparallelism antiparallel antiparallel antiparallel antiparallelchk:
parallel : //, ↗↗, →→ 뭐 이런거?
antiparallel : ↗↙, ↖↘, ⇆ ⇄ ⇅ ⇵ 뭐 이런거?
즉 antiparallel은 parallel하기는 한데, 방향이 반대인거?? chk
(시점이 같은 벡터라면 collinear. collinearity)
즉 방향성,directionality =방향성,directionality =,directionality 방향성 directionality ..................의 유무와 관련?
antiparallel : ↗↙, ↖↘, ⇆ ⇄ ⇅ ⇵ 뭐 이런거?
즉 antiparallel은 parallel하기는 한데, 방향이 반대인거?? chk
(시점이 같은 벡터라면 collinear. collinearity)
즉 방향성,directionality =방향성,directionality =,directionality 방향성 directionality ..................의 유무와 관련?
{
directionality
rel 방향,direction 성질,property
} // directionality ....directionality directionality directionality 
directionality
directionality
rel 방향,direction 성질,property
} // directionality ....
directionality directionality directionality directionality