The phrase "although proof" is not correct and does not convey a clear meaning in written English.
It seems to be an incomplete thought and lacks context to determine its intended use.
Example: "Although proof of the theory was lacking, the researchers continued their experiments."
Alternatives: "even though evidence" or "despite the lack of proof".
At this point he probably wrote the treatises on military tactics that are attributed to him, although proof is lacking.
Ordinarily a police regulation, general in operation, will not be held void as to a particular property, although proof is offered that owing to conditions peculiar to it the restriction could not reasonably be applied.
It's believed that they had an affair, although proof is lacking, and Russell may simply have hoped to give that impression to Morrell, who he thought was neglecting him.
Induction of xenotolerance, e.g. through mixed hematopoietic chimerism, may represent the preferred approach, but although proof of principle has been delivered in rodents, induction of pig-to-non-human primate chimerism remains problematic.
Also, although proof of Mr. Zarqawi's presence has not been found, wiretaps and telephone records from suspected terrorists in Italy show that five people believed to be his operatives in northern Iraq were in contact by satellite telephone with colleagues in Europe, American and Italian officials said.
Although proof is still needed that HIV screening will alter HIV prevalence and incidence estimates over time, we describe a comprehensive and practical set of implementation strategies for a rapid HIV testing program in the ED.
Although proof-of-concept studies using catalytically inactive Cas9-fusion proteins to modulate transcription have been reported, here we present a detailed survey of the reproducibility of gRNA positional effects across a variety of neurodevelopmental disorder-relevant risk genes, donors, neural cell types, and dCas9 effectors.
These changes are possibly disease-specific and also different from changes due to aging, although proofs are indirect.
So, although proofs are read forwards, that is, from leaves to root or, logically speaking, from assumptions to conclusion, that is not the way in which they are typically constructed.
Although proof-of-principle is provided by reports that exogenous Se was shown to decrease hepatic fibrosis in mice [ 155], Se deficiency promoted thyroid fibrosis in a TGF β-dependent manner in rats [ 156].
Engineered zinc-finger (ZF) protein-based repression of transcription may represent a novel approach for treating gain-of-function mutations, although proof-of-concept of this use is still lacking.
