How to Use "postulate" with Example Sentences

1. Researchers now postulate that addiction requires two things .
2. It seems that they would look for any explanation rather than postulate a new particle .
3. First , we must postulate that if souls exist , they must have some mass .
4. But the postulate worked only as long as it was applied to the exchange of physical goods .
5. I think we can postulate a utility function along the following lines : having a christmas tree up during the christmas season brings positive utility , but diminishing marginal utility over time .