Yes and no.Only in maths does this exsist.Yeah but........ Time itself doesn't exsist.So if there is no time.There's not really a 4th dimension. I.E in maths time is not the 4th dimension yes it does exist in maths, there have even been drawings of 4d cubes. A possible reason they call time 4th dimension is because it is pictured as a series of 3d cubes rotating & interchanging on the 4th dimension i.e different time frames but there is no proof of this.
If your talking maths then its 4 d if your talking viewing on a a screen 3d is 3 dimension and d is dimension
An underline on a dimension means that it is not to scale.
Dimension.
A expression in maths is a collection of terms without an equality sign.
"tenth"
What symbol
division
circle
direction
Related to.
Adding