Opacify part of functor_eq

After    | File Name                                    | Before
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6m30.60s | Total                                        | 7m01.38s
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0m26.49s | Grothendieck/PseudofunctorToCat              | 0m26.88s
0m25.82s | Comma/Duals                                  | 0m28.49s
0m25.16s | Adjoint/Hom                                  | 0m24.94s
0m23.81s | Category/Equality                            | 0m23.88s
0m17.64s | ExponentialLaws/Law4/Functors                | 0m20.73s
0m16.98s | ExponentialLaws/Law1/Law                     | 0m20.09s
0m16.51s | Pseudofunctor/Core                           | 0m19.53s
0m15.09s | Adjoint/UniversalMorphisms                   | 0m14.40s
0m14.00s | Adjoint/Composition                          | 0m17.96s
0m13.92s | Pseudofunctor/FromFunctor                    | 0m13.62s
0m13.85s | Functor/Pointwise/Properties                 | 0m15.72s
0m13.56s | Adjoint/Duals                                | 0m17.98s
0m11.92s | Adjoint/UnitCounitCoercions                  | 0m11.52s
0m09.46s | UniversalProperties                          | 0m09.90s
0m08.22s | Comma/InducedFunctors                        | 0m08.63s
0m07.57s | Adjoint/Equality                             | 0m09.34s
0m07.50s | Functor/Product                              | 0m09.30s
0m07.23s | Groupoid                                     | 0m07.24s
0m06.98s | DualFunctor                                  | 0m08.54s
0m06.88s | Category/Morphisms                           | 0m07.12s
0m05.59s | Adjoint/UnitCounit                           | 0m05.62s
0m04.85s | NaturalTransformation/Pointwise              | 0m06.94s
0m04.76s | ExponentialLaws/Law2/Functors                | 0m04.58s
0m04.66s | Functor/Sum                                  | 0m04.64s
0m04.20s | Functor/Equality                             | 0m04.14s
0m04.16s | ProductLaws                                  | 0m04.10s
0m04.02s | Groupoid/Duals                               | 0m04.30s
0m03.61s | Subcategory/SigmaMorphisms                   | 0m03.69s
0m03.54s | Groupoid/Functors                            | 0m03.68s
0m03.42s | Category/Sum                                 | 0m03.32s
0m03.35s | Functor/Attributes                           | 0m03.31s
0m03.35s | Functor/Product/ProductFunctor               | 0m03.27s
0m02.92s | Comma/CommaCategory                          | 0m04.34s
0m02.72s | Grothendieck/ToSet                           | 0m02.40s
0m02.42s | BoolCategory                                 | 0m02.42s
0m02.16s | Subcategory/Sigma                            | 0m02.27s
0m02.06s | NaturalTransformation/Isomorphisms           | 0m02.30s
0m02.02s | NaturalTransformation/Equality               | 0m01.85s
0m02.00s | NaturalTransformation/CompositionLaws        | 0m01.82s
0m01.98s | ExponentialLaws/Law2/Law                     | 0m02.07s
0m01.86s | Category/Product                             | 0m01.89s
0m01.83s | Hom                                          | 0m02.10s
0m01.78s | FunctorCategory/Morphisms                    | 0m01.77s
0m01.77s | NaturalTransformation/Duals                  | 0m01.84s
0m01.75s | ExponentialLaws/Law  N/A                     | 0m02.20s
0m01.59s | NaturalTransformation/Composition/Functorial | 0m01.49s
0m01.58s | NaturalTransformation/Product                | 0m01.56s
0m01.39s | NaturalTransformation/Composition            | 0m01.29s
0m01.34s | ExponentialLaws/Law1/Functors                | 0m01.47s
0m01.30s | Functor/Pointwise                            | 0m01.29s
0m01.24s | Functor/Composition/Functorial               | 0m01.29s
0m01.23s | Subcategory/SigmaObjects                     | 0m01.15s
0m00.94s | CategoryOfSections                           | 0m00.84s
0m00.86s | InitialTerminalCategory                      | 0m00.79s
0m00.82s | Comma/Projection                             | 0m00.92s
0m00.69s | Subcategory/Wide                             | 0m00.64s
0m00.58s | ExponentialLaws/Law3/Functors                | 0m00.52s
0m00.58s | Common                                       | 0m00.58s
0m00.54s | FunctorCategory/Functorial                   | 0m00.56s
0m00.49s | Functor/CompositionLaws                      | 0m00.50s
0m00.48s | NaturalTransformation/Sum                    | 0m00.50s
0m00.43s | Cat                                          | 0m00.38s
0m00.41s | Cat/Morphisms                                | 0m00.42s
0m00.38s | IsGroupoid                                   | 0m00.32s
0m00.35s | IndiscreteCategory                           | 0m00.37s
0m00.32s | FunctorCategory                              | 0m00.29s
0m00.30s | Discrete/Duals                               | 0m00.37s
0m00.30s | NaturalTransformation/Identity               | 0m00.28s
0m00.29s | Category/Objects                             | 0m00.26s
0m00.29s | ExponentialLaws/Law3/Law                     | 0m00.28s
0m00.28s | Functor/Duals                                | 0m00.22s
0m00.28s | ExponentialLaws/Law4/Law                     | 0m00.33s
0m00.27s | SetCategory                                  | 0m00.30s
0m00.27s | Grothendieck/ToCat                           | 0m00.24s
0m00.24s | DependentProduct                             | 0m00.24s
0m00.24s | Functor/Composition                          | 0m00.23s
0m00.24s | ExponentialLaws                              | 0m00.20s
0m00.23s | Adjoint                                      | 0m00.20s
0m00.22s | ExponentialLaws/Law2                         | 0m00.19s
0m00.21s | NatCategory/Duals                            | 0m00.17s
0m00.19s | Category/Core                                | 0m00.21s
0m00.18s | NatCategory                                  | 0m00.20s
0m00.18s | ExponentialLaws/Law3                         | 0m00.13s
0m00.18s | NaturalTransformation/Core                   | 0m00.18s
0m00.17s | ExponentialLaws/Law1                         | 0m00.18s
0m00.17s | Adjoint/Identity                             | 0m00.18s
0m00.17s | Category/Duals                               | 0m00.15s
0m00.16s | Coq/Arith/Plus                               | 0m00.13s
0m00.16s | NaturalNumbersObject                         | 0m00.16s
0m00.15s | ComputableCat                                | 0m00.21s
0m00.14s | Coq/Logic/Decidable                          | 0m00.17s
0m00.14s | Peano                                        | 0m00.14s
0m00.14s | Pseudofunctor                                | 0m00.10s
0m00.14s | Functor/Core                                 | 0m00.14s
0m00.13s | NaturalTransformation                        | 0m00.12s
0m00.12s | Coq/Arith/Lt                                 | 0m00.10s
0m00.12s | Category/UnivalentCategory                   | 0m00.12s
0m00.12s | Coq/Arith/Compare_dec                        | 0m00.11s
0m00.12s | DiscreteCategory                             | 0m00.11s
0m00.12s | ExponentialLaws/Law4                         | 0m00.14s
0m00.11s | Category/StrictCategory                      | 0m00.10s
0m00.11s | Grothendieck                                 | 0m00.13s
0m00.11s | Functor/Identity                             | 0m00.09s
0m00.10s | Functor                                      | 0m00.09s
0m00.10s | Utf8                                         | 0m00.10s
0m00.09s | Coq/Arith/Gt                                 | 0m00.09s
0m00.08s | Subcategory/Full                             | 0m00.09s
0m00.08s | Subcategory                                  | 0m00.10s
0m00.08s | Category                                     | 0m00.10s
0m00.07s | Coq/Arith/Le                                 | 0m00.07s
0m00.06s | NotationsUtf8                                | 0m00.06s
0m00.04s | Notations                                    | 0m00.04s