31. What Cook felt she experienced as a breakthrough has not been confirmed by any irrefutable evidence . 32. "There's irrefutable evidence that we've got chemical exposures," 33. We have never before had this type of irrefutable evidence that sedimentary rocks are widespread on Mars. 34. This presumes, though, that intelligence work has uncovered probable cause that can be backed by irrefutable evidence . 35. "What we've come back with is a small piece, but it's irrefutable evidence of what was happening," 36. It was a marvel of modern technology, the prize of the collection, irrefutable evidence of a crime. 37. We have never before had this type of irrefutable evidence that sedimentary rocks are widespread on Mars, 38. Gamache's misshapen, sliced-up face was irrefutable evidence . 39. Here was irrefutable evidence of antiwar sentiment that neither the president nor the media could deny any longer. 40. "If there is irrefutable evidence of wrongdoing and breaching the rules we would apply sanctions, " he said.