Since proof justifying the use of implants or arthroplasty after cervical anterior discectomy is lacking, PROCON was designed.
Although most surgeons perform nerve root decompression with instrumented fusion in the treatment of spondylolytic spondylolisthesis, scientific proof justifying instrumented spondylodesis over simple decompression is lacking.
Currently, nerve root decompression with instrumented fusion is the golden standard in the surgical treatment of low-grade spondylolytic spondylolisthesis, although scientific proof justifying instrumented spondylodesis over simple decompression is lacking.
This evolution has probably multiple drivers: expert's conferences in scientific meetings, positive communication of caregivers in ICUs which have extended these practices [12, 19, 20] and knowledge by the intensivists of the absence of scientific proofs justifying closing ICUs to families.
When designing a cryptographic protocol such as the one in Figure 4, one often uses arguments such as "since this message was digitally signed by one principal A, a second principal B can be sure it came from A" in informal proofs justifying how the cryptographic protocol works.
"There is no real proof justifying any of these statements," they added.
Ad 2: Noncanonical proofs are justified by reducing them to canonical ones.
Ad 3: Open proofs are justified by considering their closed instances.
Especially the delicate interchanges of the orders of summation and/or integration needed in the proofs are justified in great detail.
This was taken by some newspapers in Britain, Italy, Germany and Switzerland as sufficient proof to justify front-page articles.
Qatar, the lone Arab nation on the council, said it had not seen "proof" to justify sanctions.
