【计】 proof by contradiction
contradiction; antinomy; conflict; contravention; illogicality; inconsistency
【医】 conflict
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