Sentence examples similar to substantiation is present from inspiring English sources

To make such assertions without substantiation is irresponsible.

And if substantiation isn't possible, there should be proper correction by the newspaper or magazine in question".

Depending on the end application, a level of process substantiation is required for new parts or alloys.

Such substantiation is important to provide more concrete action perspectives both in relation to consumers as well as the diverse group of other stakeholders involved.

And substantiation is better than the Cohan rule.

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Further substantiation is provided by the morphological changes on single hydrate crystals mediated by these same proteins (Fig. 4).

For a structure/function claim, FDA requires that manufacturers' substantiation is accepted by experts in the field and that the claim is truthful and not misleading.

Or, how many times does the talking head say, "according to X organization" without any further substantiation for what is being presented, much less offer an opposing source or suggest that certain questions remain on the matter.

The analysis in the paper is largely generic, limited and yet arrives at robust and trenchant conclusions preferring the North American production model without any real substantiation or justification for this position being presented.

Other bits of substantiation are even less plausible.