∀e:EuclideanPlane. ∀A,B,C1,C2:Point. ∃E:Point. (A_E_B ∧ AE=C1C2) supposing (¬(C1 = C2 ∈ Point)) ∧ |C1C2| < |AB|
{ Auto }
1. e : EuclideanPlane
2. A : Point
3. B : Point
4. C1 : Point
5. C2 : Point
6. [%] : (¬(C1 = C2 ∈ Point)) ∧ |C1C2| < |AB|
⊢ ∃E:Point. (A_E_B ∧ AE=C1C2)