The philosopher David Hume says that we can't prove or justify a principle called the Uniformity of Nature. He also says that the result of this is that no probable reasonings are correct.
(1) Watch the Oxford University lecture by Peter Millican on Hume on probable reasonings and the principle of the Unformity of Nature at https://www.youtube.com/watch?v=ET9oRKEwESA. Read Hume,Enquiry, section IV, in the Course Materials folder. Here is how Millican understands Hume's reasoning in this section of the Enquiry: