The null operator is then identified with the empty subject [e] (as marked by ku').
eThe secondary predicate may be predicated of an empty subject in the second conjunct, along the lines in Huang (1992), and the empty subject refers to the main clause in the first conjunct.
The empty subject could be an empty pronominal in the sense of Huang (1992) or a silent expression in the sense of Kayne (2015).
Plato thus determines subject and predicate as relational elements in a statement and excludes as statements subject-predicate combinations containing empty subject expressions.
The wording of SQUARE does not rule out the possibility of truth-valueless sentences so Strawson's view that empty subject terms lead to lack of truth value does not conflict with SQUARE.
For example, Strawson's reinterpreted version of conversion holds for the I form because any I form proposition entails its own converse: if 'Some A is B' and 'Some B is A' both have truth value, then neither has an empty subject term, and so if neither lack truth value and if either is true the other will be true as well.
Body mass was recorded prior to the start of the workday and again just prior to the worker leaving for home (bladder empty, subject wearing only underwear) using the SR Model SR241 scales (accuracy = 0.2% ±1 digit, resolution = 0.1 kg, SR Instruments, NJ, USA).
He remained there for 10 years, but talks with some regret about having 'wasted much of my career working on the emptiest subject, the genetics of snails, while many of my contemporaries have turned into the best cutting-edge genetic biologists of our time'.
If all variants of s with respect to i with non-empty subject ideas are true, m = n and m/n = 1, i.e., s is universally valid with respect to i; if all variants are false, m = 0 and m/n = 0, i.e., s is universally contravalid with respect to i (WL II, 81 f).
