Prement

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A Prement is an Element, or Antiment, that appears twice in an Elemental equation. The character in the equation is written first, and underlined to denote that it is the compound's Prement.
Ex. : Silver [Heart/Bondage] (Earth, Fire, Order), can be written as: [4e-6e-3e], [E2-E3-A2], [E2-6e-3e]