leading vs sequent

leading

adj
  • Providing guidance or direction. 

  • Occurring in advance; preceding. 

  • Ranking first. 

noun
  • Vertical space added between lines; line spacing. 

  • An act by which one is led or guided. 

sequent

adj
  • Recurring in succession or as a series; successive, consecutive. 

noun
  • Something that follows in a given sequence. 

  • A disjunctive set of logical formulae which is partitioned into two subsets; the first subset, called the antecedent, consists of formulae which are valuated as false, and the second subset, called the succedent, consists of formulae which are valuated as true. (The set is written without set brackets and the separation between the two subsets is denoted by a turnstile symbol, which may be read "give(s)".) 

  • A sequential calculus 

How often have the words leading and sequent occurred in a corpus of books? (source: Google Ngram Viewer )