presuppose

verb

1. To assume some truth without proof, usually for the purpose of reaching a conclusion based on that truth.

   “"Nay," replied her companion, "what have I done for you to presuppose such a want of gallantry, as to imagine that I would attempt to guess a lady's secret before she thought proper to communicate it?"”

   “The Working Party's report to the Minister of Transport was published in 1949. It presupposed the demolition of Blackfriars railway bridge on planning grounds, to meet the requirements of the County of London and City of London Plans; [...]. (There were two railway bridges, one was demolished in 1985.)”