Fix spacing
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@ -163,8 +163,8 @@ QR = {
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var_values: [Vec<?E>, '?D, ?E] // this is S
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var_values: [Vec<?E>, '?D, ?E] // this is S
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region_constraints: [?E: '?D], // from the impl
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region_constraints: [?E: '?D], // from the impl
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value: (), // for our purposes, just (), but
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value: (), // for our purposes, just (), but
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// in some cases this might have
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// in some cases this might have
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// a type or other info
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// a type or other info
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}
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}
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```
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```
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@ -75,10 +75,10 @@ variance of C must be at most covariant *and* contravariant. All of these
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results are based on a variance lattice defined as follows:
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results are based on a variance lattice defined as follows:
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```text
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```text
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* Top (bivariant)
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* Top (bivariant)
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- +
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- +
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o Bottom (invariant)
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o Bottom (invariant)
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```text
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```
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Based on this lattice, the solution `V(A)=+`, `V(B)=-`, `V(C)=o` is the
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Based on this lattice, the solution `V(A)=+`, `V(B)=-`, `V(C)=o` is the
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optimal solution. Note that there is always a naive solution which
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optimal solution. Note that there is always a naive solution which
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