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Lean.Meta.Tactic.Grind.Arith.Linear.Util

Tries to evaluate the polynomial p using the partial model/assignment built so far. The result is none if the polynomial contains variables that have not been assigned.

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    Returns .true if c is satisfied by the current partial model, .undef if c contains unassigned variables, and .false otherwise.

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      Resets the assignment of any variable bigger or equal to x.

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        Returns true if the linarith state is inconsistent.

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          Returns true if x has been eliminated using an equality constraint.

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            Returns occurrences of x.

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              Adds y as an occurrence of x. That is, x occurs in lowers[y], uppers[y], or diseqs[y].

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                Given p a polynomial being inserted into lowers, uppers, or diseqs, get its leading variable y, and adds y as an occurrence for the remaining variables in p.

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                  Given a polynomial p, returns some (x, k, c) if p contains the monomial k*x, and x has been eliminated using the equality c.

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                      Selects the variable in the given linear polynomial whose coefficient has the smallest absolute value.

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