| unAssetClass | Plutus.V1.Ledger.Value |
| unCurrencySymbol | Plutus.V1.Ledger.Value, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| unionWith | Plutus.V1.Ledger.Value, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| unitDatum | Plutus.V1.Ledger.Scripts |
| unitRedeemer | Plutus.V1.Ledger.Scripts |
| unliftingModeIn | Plutus.ApiCommon |
| unMintingPolicyScript | Plutus.V1.Ledger.Scripts, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| unsafeFromBuiltinData | Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| UnsafeFromData | Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| unScript | Plutus.V1.Ledger.Scripts |
| unStakeValidatorScript | Plutus.V1.Ledger.Scripts, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| unTokenName | Plutus.V1.Ledger.Value, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| unValidatorScript | Plutus.V1.Ledger.Scripts, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| UpperBound | |
| 1 (Type/Class) | Plutus.V1.Ledger.Interval, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| 2 (Data Constructor) | Plutus.V1.Ledger.Interval, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |
| upperBound | Plutus.V1.Ledger.Interval, Plutus.V1.Ledger.Api, Plutus.V2.Ledger.Api |