Slight change to tactics in Common

After    | File Name                             | Before
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1m32.28s | Adjoint/Hom                           | 1m33.17s
0m19.67s | Category/Equality                     | 0m19.55s
0m10.81s | Comma/Duals                           | 0m09.90s
0m08.04s | Comma/InducedFunctors                 | 0m07.75s
0m07.19s | Groupoid                              | 0m07.40s
0m05.56s | Category/Morphisms                    | 0m05.29s
0m04.58s | SumPreCategory                        | 0m04.60s
0m04.27s | Functor/Equality                      | 0m04.26s
0m04.20s | Groupoid/Duals                        | 0m04.28s
0m03.65s | Groupoid/Functors                     | 0m03.68s
0m03.28s | UniversalProperties                   | 0m03.27s
0m02.86s | Grothendieck/ToSet                    | 0m02.65s
0m02.57s | BoolCategory                          | 0m02.40s
0m02.20s | Comma/CommaCategory                   | 0m02.38s
0m01.89s | Category/Product                      | 0m01.92s
0m01.87s | NaturalTransformation/Equality        | 0m01.87s
0m01.78s | NaturalTransformation/Duals           | 0m01.76s
0m01.56s | Hom                                   | 0m01.73s
0m01.44s | NaturalTransformation/Product         | 0m01.34s
0m01.30s | NaturalTransformation/Composition     | 0m01.23s
0m01.26s | NaturalTransformation/CompositionLaws | 0m01.12s
0m01.24s | Functor/Product                       | 0m01.20s
0m01.08s | NaturalTransformation/Isomorphisms    | 0m01.06s
0m00.80s | Cat/Morphisms                         | 0m00.78s
0m00.69s | FunctorCategory/Morphisms             | 0m00.65s
0m00.60s | InitialTerminalCategory               | 0m00.57s
0m00.44s | Functor/CompositionLaws               | 0m00.43s
0m00.38s | Comma/Projection                      | 0m00.41s
0m00.36s | IndiscreteCategory                    | 0m00.30s
0m00.34s | Discrete/Duals                        | 0m00.29s
0m00.34s | Common                                | 0m00.31s
0m00.32s | SetCategory                           | 0m00.36s
0m00.30s | NaturalTransformation/Identity        | 0m00.33s
0m00.29s | Cat                                   | 0m00.32s
0m00.27s | FunctorCategory                       | 0m00.30s
0m00.25s | Functor/Duals                         | 0m00.22s
0m00.24s | Functor/Composition                   | 0m00.25s
0m00.23s | Adjoint/UnitCounit                    | 0m00.26s
0m00.22s | Category/Objects                      | 0m00.26s
0m00.21s | NatCategory                           | 0m00.22s
0m00.18s | IsGroupoid                            | 0m00.22s
0m00.17s | ComputableCat                         | 0m00.18s
0m00.17s | NaturalNumbersObject                  | 0m00.18s
0m00.16s | NatCategory/Duals                     | 0m00.18s
0m00.16s | Category/Duals                        | 0m00.16s
0m00.15s | Category/Core                         | 0m00.16s
0m00.15s | Adjoint                               | 0m00.16s
0m00.13s | Category/UnivalentCategory            | 0m00.10s
0m00.13s | NaturalTransformation/Core            | 0m00.18s
0m00.12s | Functor/Core                          | 0m00.12s
0m00.11s | Functor/Identity                      | 0m00.10s
0m00.11s | Peano                                 | 0m00.14s
0m00.10s | Functor                               | 0m00.09s
0m00.10s | DiscreteCategory                      | 0m00.10s
0m00.10s | Grothendieck                          | 0m00.10s
0m00.09s | Utf8                                  | 0m00.09s
0m00.08s | NaturalTransformation                 | 0m00.11s
0m00.08s | Category/StrictCategory               | 0m00.07s
0m00.06s | Category                              | 0m00.06s
0m00.06s | NotationsUtf8                         | 0m00.05s
0m00.06s | Notations                             | 0m00.04s
-----------------------------------------------------------
3m13.32s | Total                                 | 3m12.65s