| Answer | Crossword Clue |
|---|---|
| theorem | proposition or formula containing something to be proved |
| undecidable | (of a proposition or theorem) Not able to be proved or disproved |
| theorems | a formula, proposition, or statement in mathematics or logic deduced or to be deduced from other formulas or propositions |
| promissory | containing a promise or binding declaration of something to be done or forborne |
| promissorily | PROMISSORY, containing a promise or binding declaration of something to be done or forborne |
| leap | act or instance of accepting or trusting in something that cannot readily be seen or proved |
