proposit-core
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    Type Alias TLinkMove

    TLinkMove: "contradict" | "affirm" | "undercut" | "reinforce"

    What a link does to the expression it binds.

    • contradict: NOT(x) on a statement — the expression is false.
    • affirm: x on a statement — the expression is true.
    • undercut: NOT(s) on an inference — the operator's step does not hold.
    • reinforce: s on an inference — the operator's step holds.