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The phrase "valid on" is correct and usable in written English.
You may use it to indicate the dates or period of time for something to be valid or effective. For example: "This coupon is valid on August 1 and August 2 only."
Exact(58)
Logical principles that are valid on one understanding of these notions may not be valid on another.
Somehow, all opposing opinions are equally valid on this one.
Typically, the handset software is reprogrammed to change the IMEI to one that is valid on the network.
Observer readers can buy two tickets for the price of one: the offer is valid on full-price tickets only and must be booked before 4 April.
A rule is valid on a frame iff the validity of the premises inferences on that frame guarantees the validity of the conclusion inference on the frame.
This model also proved valid on the basis of this demanding validation which is not generally done.
On the one hand, we have certain intuitions about which deductive inferences are valid; on the other hand we have rules of inference.
Valid on all performances 20 – 31 May.
10% discount valid on all Shelf Improvement packages.
Similar(2)
Using valid on-line database, we searched for mRNAs predicted to be hsa-miR-9* targets.
The valid one is on the top right corner.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com