The phrase "a valid replacement" is correct and usable in written English.
You can use it when discussing alternatives or substitutes that are acceptable or appropriate in a given context.
Example: "In this case, using a different software program is a valid replacement for the one that is currently malfunctioning."
Alternatives: "an acceptable substitute" or "a suitable alternative".
Therefore, considering the low sensitivity, the subjectivity, the cost and the limitations of ICA IFI investigation on primate's pancreas, ZnT8A may represent a valid replacement of this assay at disease onset in paediatric patients.
The critical stress intensity factor, KIC, is a valid replacement for the organoleptic (sensory) assessment of "hardness" or "crunchiness" in fruit and vegetables and suggests that crack initiation and propagation in these foods is controlled by factors similar to those found in engineering materials.
In conclusion, ATP bioluminescence is a valid replacement for measuring the bacterial contamination of surfaces, and can be a useful tool for direct feedback to assess cleaning properties.
Furthermore, the LDST is a valid replacement for the commonly used short Synacthen test and the insulin tolerance test (ITT), of which the latter is widely regarded as the gold standard test for the integrity of the HPA axis [ 37].
mRNA sequencing libraries have been suggested as a valid replacement for the control lane, however mRNA libraries (prepared from the standard Illumina-protocol using double strand ligation protocol) show a biased base composition in the first twelve bases of the reads [ 42] and are therefore no longer recommended.
However, according to a preliminary test, macerated human pelvic bone can be used as a valid replacement for fresh-frozen hip specimens, as the maceration of fresh-frozen human hip specimens only leads to slight and calculable changes of mechanical properties.
Plausibly, the first pattern reflects the default direction of valid replacement: removing a restriction preserves truth, except in special cases like those involving negation.
But it is unclear whether the agency will bow to another demand from the refiners: to drop an E.P.A. requirement that companies shop for valid replacement credits if they are found to be holding bogus ones.
Then, Lemma 2.9 holds with for the valid replacement so that is strictly contractive and has a fixed point.
Unfortunately this will further encourage, not reduce, the use of animals for drug tests and distract efforts to finding valid replacements.
Invalid terms for which valid replacements could not be found were denoted as 'unknown'unknown
