-- -*- M2-comint -*- hash: 1748769559882472372

i1 : S = cellComplexSphere(QQ,3)

o1 = S

o1 : CellComplex

i2 : cells(S)

o2 = HashTable{0 => {Cell of dimension 0 with label 1}}
               3 => {Cell of dimension 3 with label 1}

o2 : HashTable

i3 : complex S

       1       1                   1
o3 = QQ  <-- QQ  <-- 0 <-- 0 <-- QQ
                                  
     -1      0       1     2     3

o3 : Complex

i4 : prune homology S

       1
o4 = QQ
      
     3

o4 : Complex

i5 : 
