mitmlu lujvo

s1=m1 seems to be the same as m2 by standard m3 to observer s3 under conditions s4.

Cf. simlu, mitmlu.

In notes:

x1 seems/appears to have property(ies) x2 to observer x3 under conditions x4.
x1 and x2 are indistinguishable from each other, they seem to share all their properties except maybe their location and identity, as perceived by observer x3