At first, he said, it was difficult to find "decisive proof."

The week of 12-19 April provided decisive proof of the last of these considerations.

They suggest Marx's observations fail to provide any logically decisive proof that human labour is the substance of economic value.

No unequivocal and decisive proof has ever been presented to settle this controversy and it may never be resolved.

The authors' lack of iron-clad data places them in the cruel bind of not being able to deliver decisive proof.

Gordon, disputing this consensus, wrote, "However, this consensus is not based on decisive proof.

No food can afford a more decisive proof of its nourishing quality, or of its being peculiarly suitable to the health of the human constitution.

Apparently, the minister had some doubts as to the guilt of Dreyfus, and did not wish to publish his arrest until the inquiry furnished decisive proofs.

While some Administration officials say they are convinced that Israel is helping South Africa develop its new missile, one official said there is no decisive proof.

A charge supported by such decisive proof was admitted without contradiction and the legions with repeated acclamations acknowledged the justice and authority of the Emperor Diocletian.

The Moors vaunted it as a decisive proof of the superior sanctity of their faith, and extolled their king to the skies when he returned in triumph to Granada.

By 1737 Fielding had definitely drifted further into the Opposition camp but until further decisive proof is unearthed, his claim to the authorship of The Golden Rump cannot be expressly disinclined.

Information of these matters coming to the ears of justice, decisive proofs were hoped for; but this happened just when other criminal informations were lodged against the marquis, which left him helpless to prevent the exposure of his crimes.

The most decisive proof of the absurdity of the indiscriminate use of any strong manure was obtained at Bingen, a town on the Rhine, where the produce and development of vines were highly increased by manuring them with animal matters such as shavings of horn.

The detection of these gamma-ray lines two decades later provided the decisive proof that iron had been synthesized in supernovae in the form of radioactive nickel isotopes rather than in the form of iron isotopes, which bFowler and Hoyle had advocated.

Mr. Phillipps adds that Greene's quotation of the line 'TYGER'S HEART WRAPT IN A PLAYER'S HIDE' 'is a decisive proof of Shakespeare's authorship of the line.'