*AtomGram* | *documentation* MassMeasure that is also known as the gram-atom. Defined as the mass in grams of 1 *Mole* of pure substance. For example, 1 *AtomGram* of Carbon 12 will be 12 Grams of pure Carbon 12. 2 AtomGrams of the same substance will be 24 Grams of it. This is an unusual unit in that it is essentially 1 *Mole* of 'stuff' measured in grams, so that the actual value (i.e. mass) depends on the type of substance | |

**is an ***instance* of MassMeasure | |

**is an ***instance* of UnitOfMeasure | |

MassMeasure | **is first ***domain* of *DensityFn* | |

UnitOfMeasure | **has axiom** (=> (*and* (*equal* (*MeasureFn* ?NUMBER ?UNIT) ?QUANT) (*subclass* ?UNIT ?QUANTTYPE) (*not* (*equal* ?QUANTTYPE UnitOfMeasure))) (*subclass* ?QUANT ?QUANTTYPE))
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**has axiom** (=> (*and* (*instance* ?FUNCTION RelationExtendedToQuantities) (*instance* ?FUNCTION BinaryFunction) (*instance* ?NUMBER1 RealNumber) (*instance* ?NUMBER2 RealNumber) (*equal* (*AssignmentFn* ?FUNCTION ?NUMBER1 ?NUMBER2) ?VALUE)) (forall (?UNIT) (=> (*instance* ?UNIT UnitOfMeasure) (*equal* (*AssignmentFn* ?FUNCTION (*MeasureFn* ?NUMBER1 ?UNIT) (*MeasureFn* ?NUMBER2 ?UNIT)) (*MeasureFn* ?VALUE ?UNIT)))))
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**has axiom** (=> (*and* (*instance* ?REL RelationExtendedToQuantities) (*instance* ?REL BinaryRelation) (*instance* ?NUMBER1 RealNumber) (*instance* ?NUMBER2 RealNumber) (*holds* ?REL ?NUMBER1 ?NUMBER2)) (forall (?UNIT) (=> (*instance* ?UNIT UnitOfMeasure) (*holds* ?REL (*MeasureFn* ?NUMBER1 ?UNIT) (*MeasureFn* ?NUMBER2 ?UNIT)))))
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**is second ***domain* of *MeasureFn* | |

PhysicalQuantity | **is partitioned into** ConstantQuantity, FunctionQuantity | |

Abstract | **is ***disjoint* from Physical | |