1. Incontrovertible proof of the government's true intentions toward Morocco.

2. This wasn't the first time a witness had sung like a bird but it was taken to be incontrovertible proof of who owned Pepo.

3. A fuzzy integument was first reported from a specimen of Scaphognathus crassirostris in 1831 by Goldfuss, and recent pterosaur finds and the technology for histological and ultraviolet examination of pterosaur specimens have provided incontrovertible proof: pterosaurs had pycnofiber coats.