【经】 negative verification
athwart; contradictorily; counter; disobey; go against; inverse
【医】 contra-
prove; certify; argue; demonstrate; justify; manifest; testify; vouch
【计】 proofness; proving
【化】 proofing
【医】 certificate; certify; proof
【经】 attest; attestation; authenticated; authentication; certification
certify; testimony