package logtk

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package logtk
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val get_eqn : t -> Position.t -> (term * term * bool) option

get the term l at given position in clause, and r such that l ?= r is the Literal.t at the given position.

val get_arith : t -> Position.t -> Int_lit.Focus.t option
val get_rat : t -> Position.t -> Rat_lit.Focus.t option

The following functions will raise Invalid_argument if the position is not valid or if the literal isn't what's asked for

val get_eqn_exn : t -> Position.t -> term * term * bool
val get_arith_exn : t -> Position.t -> Int_lit.Focus.t
val get_rat_exn : t -> Position.t -> Rat_lit.Focus.t