Part A - Construct and constrain a physical account

§	ID & Title	Status	Keywords & Search Queries	Dependencies
1	PHY.4 - Constrain an Unknown Physical Law by Transforming the Situation	Usable, evolving	unknown law; symmetry; physical transformation; dimensions; balance; dissipation. What can be concluded before a full response law is known?	MATH.13 for a symmetry consequence; MMP.11 for an unknown response family.
2	PHY.5 - Choose an Effective Physical Description by Scales and Couplings	Usable, evolving	scale separation; coupling; memory; fluctuation; transient; effective description. Which physical effects can be omitted for the consequence and duration of interest?	MMP.9 for mathematical elimination; PHY.6/.8 when evolution or collective preparation matters.
3	PHY.6 - Construct Physical Evolution from Balances and Response Laws	Usable, evolving	participants; exchange; balance; constitutive response; preparation; boundary condition. Which physical laws and conditions close the proposed evolution?	C.29.BB for balances; MMP.10 for coupled equations; C.29.2 for computational formulation.
4	PHY.7 - Obtain Motion from a Physical Variational Principle	Usable, evolving	physical action; admissible history; constraints; boundary freedom; variation. What physical grounds permit a variational construction, and what motion follows?	MATH.10 for mathematical variation; PHY.6 for the direct balance alternative.
5	PHY.8 - Infer Macroscopic Physical Behavior from Microscopic Alternatives	Usable, evolving	microstates; preparation; ensemble; correlation; fluctuation; relaxation. Which physical distribution and dynamics support a collective prediction?	MMP.7 for probability composition; MMP.9 for reduction; PHY.6 for the required physical evolution.