-> means is related to, moves towards, goes forwards

<- means moves backwards

<-> means is related to, or the convertibility of (m<->e as in m = e/c2 and e = mc2 = matter can be converted into energy/energy can be converted into matter)

n= means not equal (used when there is a possibility that a font may not translate ≠ [Option + =] as the symbol which means "not equal" or "is not equal to", as in the Laws of Logic wherein A = A but A n= B and A n= A + B)

(2) A n= B (A ≠ B) means A is not equal to and therefore cannot be B.

(3) A n= A + B (A ≠ B) means A is not equal to both A and B.

ABO = Air-Born Observer [compare EBO = Earth-Bound Observer; compare SBO = Space-Born Observer]

ADO = Accelerated/Decelerated Observer [opposite of NANDO = Non-Accelerated/Non-Decelerated Observer]

Absolute Acronyms:

AF = Absolute Frequency (when established by ITIs in ITICS)

AL = Absolute Length

AM = Absolute Motion

AMss = Absolute Mass (when an object is at AM/AV = 0 at AR in the ARRF)

AR = Absolute Rest

ARRF = Absolute Rest Reference Frame

AS = Absolute Space

ASim = Absolute Simultaneity (the simultaneity which is measured by invariable time-intervals/ITIs in invariable time-interval clocks/ITICs; compare LSim)

AT = Absolute Time

AV = Absolute Velocity

CoM = Center of Mass

CoIT = Continuum of Invariable Time (compare CoVT)

CoT = Continuum of Time:

Past Infinity <- ... <- T-2 <-
T-1 <- T0 -> T+1 -> T+2
-> ... -> Infinity Future

where

where

T = Timepoint

T0 = Timepoint Zero, Timepoint of Origin

T+1, T+2, ... etc. = Counting T/Timepoints into the future

T-1, T-2, ... etc. = Counting T/Timepoints into the past

T0 = Timepoint Zero, Timepoint of Origin

T+1, T+2, ... etc. = Counting T/Timepoints into the future

T-1, T-2, ... etc. = Counting T/Timepoints into the past

CoUT = Continuum of Universal Time

CoVT = Continuum of Variable Time (compare CoIT)

EBO = Earth-Bound Observer [compare ADO = Air-Born Observer; compare SBO = Space-Born Observer]

IRF = Inertial Reference Frame

IT = Invariable Time (the time which is measured by invariable time-intervals/ITIs in invariable time-interval clocks/ITICs; compare VT)

ITI = Invariable Time-Interval (compare VTI)

ITIC = Invariable Time-Interval Clock (compare VTIC)

i-volume = infinity-volume, the physically/mathematically unlimited volume, which has not limit to its radius/diameter and therefore no limits to its dimensions, and which surrounds any physically/mathematically limited/finite x-volume, or volume of limited radius/diameter of length x

LSim = Local Simultaneity (the simultaneity which is measured by variable time-intervals/VTIs in variable time-interval clocks/VTICs; compare ASim)

LT = Local Time (the time measured by variable time-intervals/VTIs in variable time-interval clocks/VTICs; compare AT)

M/E (m/e) = Matter/Energy (the slash designates "and" or "and/or")

MCITIC = Master Clock Invariable Time-Interval Clock (controls RCITICs/slave clocks) [MCITIC<->RCITIC]

MSSAITIC = Motion-Sensing/Self-Adjusting Invariable Time-Interval Clock

NANDO = Non-Accelerated/Non-Decelerated Observer [opposite of ADO = Accelerated/Decelerated Observer]

OP = Operational Physics

OpPhys = Operational Physics

OpPhys ToT = Operational Physics Theory of Time

OpPhys TITI = Operational Physics Theory of Invariable Time-Intervals

RCITIC = Radio-Controlled Invariable Time-Interval Clock (controlled by radio signals from a master clock/MCITIC) [MCITIC<->RCITIC]

RoF = Rate of Functioning

RoO = Rate of Operation

RoT = Rate of Ticking (for clocks)

RoV = Rate of Vibration

SBO = Space-Born Observer [compare ABO = Air-Born Observer; compare SBO = Space-Born Observer]

TI = Time-Interval (a TI is either a VTI used in VTICs or an ITI used in ITICs)

TITI = The Theory of Invariable Time-Intervals

TM = TimeMap (or Time Map)

ToT = Theory of Time

TP = TimePoint (or Time Point)

Type 1 ITIC = MSSAITIC (Motion-Sensing/Self-Adjusting Invariable Time-Interval Clock)

Type 2 ITIC = MCITIC<->RCITIC (Master Clock<->Slave Clock)

UT = Universal Time

VI = Variable Time (the time which \is measured by variable time-intervals/VTIs in variable time-interval clocks/VTICs; compare IT)

VTI = Variable Time-Interval (compare ITI)

VTIC = Variable Time-Interval Clock (compare ITIC)

x-volume = any finite volume of radius/diameter of length x, which is always surrounded by the i-volume, the infinite volume

x + i = Mathematical expression for the condition in which any finite x-volume is always surrounded by the infinite i-volume