geometry > geometric figure > point > midpoint

geometry > Euclidean geometry > point > midpoint

... > geometry > geometric figure > polytope > regular polytope > line segment > midpoint

geometry > geometric figure > line > line segment > midpoint

... > geometry > Euclidean geometry > plane curve > line > line segment > midpoint

... > topology > algebraic topology > manifold > differentiable manifold > Lie group > homogeneous space > affine space > midpoint

... > geometry > topological space > manifold > differentiable manifold > Lie group > homogeneous space > affine space > midpoint

... > geometry > differential geometry > differentiable manifold > Lie group > homogeneous space > affine space > midpoint

... > topology > differential topology > differentiable manifold > Lie group > homogeneous space > affine space > midpoint

... > algebra > group theory > topological group > Lie group > homogeneous space > affine space > midpoint

... > algebra > abstract algebra > algebraic structure > homogeneous space > affine space > midpoint

geometry > affine geometry > affine space > midpoint