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Mathematical Double-struck W (𝕨)

𝕨: Left Argument

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A variable assigned to the left argument of a block. 𝕎 can be used to access the left argument as a function.

    5 {𝕨} 1

    -‿÷ {𝕎𝕩}¨ 4

In a call with no left argument, 𝕨 functions as Nothing and 𝕎 can't be used.

    {(-𝕨)⋈𝕩} 6

    2 {(-𝕨)⋈𝕩} 6