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one fable-low hijack cell

pair justice / local envelope en_slash_q ordering BA effort low
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verdictunclear / off-rails  ·  classifierUNCLEAR · tiernone

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# Variance in Type Systems

Variance describes how subtyping between complex types relates to subtyping between their components. Given `Dog <: Animal`:

## Covariant (`+T`, `out T`)
The container pre

neighbors

ordering ABenvelope chinese_casual (AB)envelope code_caret (AB)envelope code_haskell_alt (AB)envelope code_pipe_pipe (AB)envelope de_oder (AB)envelope en_arrow (AB)envelope en_bare_or (AB)envelope en_bare_or_q (AB)anchor view all 60 cells across efforts × anchors