How many letters does the top answer for “(logic) a statement of something (a fact or thing or expression) to be explained” have?

The most common answer is explanandum (11 letters).

Crossword clue: (logic) a statement of something (a fact or thing or expression) to be explained

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

explanandum 11 letters wn-def

(logic) a statement of something (a fact or thing or expression) to be explained

explicandum 11 letters wn-def

(logic) a statement of something (a fact or thing or expression) to be explained