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[Paper 250] Two Instruments, Opposite Signs

Abstract

How far apart can two operationalisations of one phrase land? This paper gives one instance with numbers: measuring the single phrase named a separator with two instruments, their agreement is $\mathbf{0.019632}$, which is to say hardly any, and they return opposite signs on the same question. The material is the $43$ papers of this body of work. No new mathematical theorem and no new law is claimed.

First, the sizes of the censuses have a distribution. $\mathbf{43}$ papers announce a count in the title, the items number $\mathbf{157}$ in all, with mean $\mathbf{3.6512}$, median $\mathbf{3}$ and maximum $\mathbf{8}$(Section 2).

Second, the first guess looked clean. The share of papers naming a separator rises monotonically with $N$ from $\mathbf{0.3846}$ to $\mathbf{1.0000}$, without a single exception(Section 3).

Third, this is the core. Changing the instrument reversed the sign. An instrument that looks for a fixed phrasing gives a rank correlation with $N$ of $\mathbf{-0.129870}$, while one that merely looks for the word gives $\mathbf{+0.319843}$: and the two instruments agree with each other at $\mathbf{0.019632}$, which is to say hardly at all(Section 4).

Fourth, controlling for date halved it. The raw $0.319843$ becomes a partial rank correlation of $\mathbf{0.165732}$, with $p=\mathbf{0.133}$ under a permutation test that shuffles within date blocks(Section 5).

Fifth, the evidence sits on one side only. All $\mathbf{18}$ papers after number $200$ name a separator, leaving no variance, so the correlation rests on $25$ papers(Section 6).

Sixth, a third instrument returned a third number. Counting occurrences of the word gives $0.360163$, and $\mathbf{0.204077}$ once date is controlled(Section 7).

Scope (what is not claimed)

No new mathematical theorem and no new law is claimed: rank correlation, partial correlation, permutation tests, and the fact that a relation can change under stratification are all standard. No measured value is cited. What was counted is the text of the $248$ papers of this body of work, and no external data is used. Nothing is claimed about the world: all $43$ papers were written by the same author, so what is measured is a habit and not a property of words. It is not claimed that a word said to have $N$ senses really has $N$: the count is a declaration by the one counting and has not been verified as a property of the object. No causal claim is made: Section 5 shows only that the correlation falls under control, and says nothing about what caused what. No threshold is placed on the $p$ value: the number $0.133$ is written down and no declaration of significance follows. The classification of separators is applied after the fact by this paper. It is coarse, and other divisions are equally possible. Relation to earlier papers: Paper 200 measured this body of work as its own data and recorded that the guess about separators converging toward questions was refuted by the count. This paper does the same along a different axis and obtains a second refutation. Paper 183 showed that one table can carry two correct answers: Sections 5 and 6 are that shape occurring in this body of work’s own data. Paper 152 showed that sameness has four strengths: the two instruments of Section 4 are two strengths of having named a separator. Paper 186 showed that a proxy taken as a target comes apart from what it was meant to measure. This paper counts one step earlier, where two proxies already fail to agree with each other. Paper 58 showed that agreeing factors can have different roots. This paper treats disagreeing numbers rather than agreeing ones. Papers 228 and 241 built a ladder for the plus sign: Section 8 counts how that ladder avoids a combinatorial explosion. What is added is the distribution of census sizes, a demonstration that three instruments give three answers to one question, a test showing the correlation halves under control for date, and an explicit statement of which stratum carries the evidence.

1. Notation and placement

Question: when a property is said to have been measured, nothing guarantees that a different way of measuring returns the same answer. This paper gives one instance of that, with numbers.

Setting: this body of work contains many papers that open a word and count how many things it names. Distance has six, mass has seven, the plus sign has eight. Those censuses are used here as the material.

The material is the Japanese text of papers $1$ through $249$, $248$ of them (number $47$ is retired). No external data is used.

The guess made at the outset was this. With a small $N$ two names suffice, but with a large $N$ the reader is lost unless one axis is named, so papers with a large $N$ ought to name a separator more often.

That guess became the occasion for changing the instrument. It was the guess that failed, but what this paper hands over is the numbers that came out of the failing.

2. The sizes have a distribution

Check 2.1: enumerate every paper announcing a count in its title.

$N$papers
$2$$13$
$3$$9$
$4$$11$
$5$$4$
$6$$3$
$7$$2$
$8$$\mathbf{1}$

There are $43$, with $157$ items in all, mean $3.6512$, median $3$ and maximum $8$.

Observation 2.2 Two, three and four stand roughly level, at $33$ papers or $77$ percent, and beyond four the numbers roughly halve at each step. The maximum is the eight senses of the plus sign in Paper 228.

Observation 2.3 This distribution is not a property of the world. Words with twelve senses surely exist, and they are unwritten because checking twelve and handing them to a reader is hard. What is measured is the capacity of the method, not the structure of its objects.

3. The first guess looked clean

Check 3.1: look for a sentence of the form the separator is such and such, together with the form what separates them is such and such, and take the share for each $N$.

$N$papersnaming a separatorshare
$2$$13$$5$$0.3846$
$3$$9$$5$$0.5556$
$4$$11$$7$$0.6364$
$5$$4$$3$$0.7500$
$6$$3$$3$$\mathbf{1.0000}$
$7$$2$$2$$\mathbf{1.0000}$
$8$$1$$1$$\mathbf{1.0000}$

Observation 3.2 It rises monotonically without a single exception. The rank correlation is $0.208396$ and a permutation test gives $p=0.0198$. It looks exactly like the guess.

Observation 3.3 Stopping here would have made a clean paper. It was not stopped, and what follows is this paper.

4. The core: changing the instrument reversed the sign

The instrument of Section 3 looks for a fixed phrasing. But the same thing is written in other ways too: with a colon, or as “here is the separator”. So take a second instrument: does the word appear in the text at all, and nothing more.

instrumentpapers matchedrank correlation with $N$
a fixed phrasing (strict)$7 / 43$$\mathbf{-0.129870}$
the word appears (wide)$26 / 43$$\mathbf{+0.319843}$

Observation 4.1 The signs are opposite. The strict instrument says larger $N$ names a separator less often, and the wide one says more often.

Observation 4.2 Worse. The two instruments agree with each other at $\mathbf{0.019632}$: hardly at all. Both were meant to measure whether a separator was named, and they measured different things.

Observation 4.3 Among the $19$ papers the strict instrument missed are 228, 229, 230, 234, 236, 237, 239 and 240. That is, the papers with large $N$ fell out together. A preference in phrasing was itself correlated with $N$.

Observation 4.4 Paper 186 showed that a proxy taken as a target comes apart from what it was meant to measure. What is seen here is one step earlier: before anything is taken as a target, two proxies already disagree with each other. The answer is fixed at the moment the proxy is chosen.

Observation 4.5 Paper 152 showed that sameness has four strengths. What happened here is that having named a separator had two: and the two were nearly different quantities.

5. Controlling for date halved it

Check 5.1: with the wide instrument, measure against the paper number.

measuredrank correlation
$N$ and naming$0.319843$
$N$ and paper number$0.415735$
naming and paper number$0.444579$
partial, controlling for paper number$\mathbf{0.165732}$

A permutation test that shuffles only within date blocks, run $200000$ times, gives $p=\mathbf{0.133}$.

Observation 5.2 The paper number correlates with $N$ and with naming alike. Later papers take on larger words and later papers name separators: the two happened together.

Observation 5.3 Under control the raw $0.319843$ becomes $0.165732$: $52$ percent of the original. The other half was explained by date.

Observation 5.4 No causal claim is made here. What is shown is only that the correlation falls under control; it is not said that $N$ caused the naming, nor that date caused both. No threshold is placed on the $p$ value: the number $0.133$ is written down and nothing is declared.

6. The evidence sits on one side only

Check 6.1: split at paper $200$.

stratumpapersmean $N$namingcorrelation within
up to paper $200$$25$$3.000$$8$ ($32$ percent)$0.3115$
from paper $201$$18$$4.556$$\mathbf{18}$ ($100$ percent)cannot be computed

Observation 6.2 Every one of the $18$ later papers names a separator, so there is no variance. A column with no variance yields no correlation, so the raw correlation rests on $25$ papers.

Observation 6.3 The number $43$ was not the amount of evidence. Writing that $43$ papers were examined sounds strong, while $25$ are doing the work.

Observation 6.4 Paper 183 showed that one table can give opposite answers once split into strata. The same shape occurs here: and this time it occurred in this body of work’s own data.

7. A third instrument returned a third number

Check 7.1: instead of presence, count how often the word occurs. There are $83$ occurrences in all, an average of $1.93$ per paper.

measuredrank correlation
$N$ and the number of occurrences$0.360163$
paper number and occurrences$0.472969$
partial, controlling for paper number$\mathbf{0.204077}$

Observation 7.2 Three instruments returned three numbers: $-0.129870$, $+0.319843$ and $+0.360163$. Even after control they disagree, at $0.165732$ and $0.204077$.

Observation 7.3 Here is the separator. The phrase having named a separator was not a quantity. Presence, phrasing, or frequency: until one is chosen, the question has no answer.

8. The ladder avoids a combinatorial explosion

A different question: what happens if these censuses are combined? Eight senses of plus times five of divide times six of equals gives $240$. Yet this body of work never multiplies them.

rungquestionwhere
rung $0$is there a binary operation at allPaper 241
rung $1$does a change of coordinate turn it into additionPaper 228, seven of the eight do
rung $2$what blocks the restnon-commutativity, exactly one case

Observation 8.1 Whatever falls at one rung never reaches the next. So it does not become exhaustive. It is a sieve and not a product.

Observation 8.2 Division has the same shape. Paper 229 counted five obstructions to undoing multiplication, and opening one of them, the impossibility of dividing by zero, gave six. One rung at a time.

Observation 8.3 This shape was found after the fact and was not designed. Paper 241 was written after Paper 228: the ladder was built upward, not downward.

9. Separator and fences

The separator of this paper: what naming is measured with. A phrasing, a presence, or a frequency. The three were not one quantity.

Kinds of separator (a coarse division applied after the fact to the $26$ papers): a concrete invariant is the largest group at $38$ percent, what the predicate is applied to and what was allowed follow at $19$ percent each, and what must be moved and where it is placed at $12$ percent each.

Fences:

  1. Nothing is claimed about the world: the $43$ papers share one author, and a habit is what is measured.
  2. It is not verified that a word said to have $N$ senses has $N$.
  3. No causal claim is made: only that the correlation falls under control.
  4. No threshold is placed on the $p$ value.
  5. The classification of separators is coarse and applied after the fact.
  6. This paper is not outside the $43$ either: the next count will include it.

10. Roll call and closing

  1. $43$ papers, $157$ items, mean $3.6512$, median $3$, maximum $8$ (Check 2.1).
  2. The first guess was monotone without exception (Check 3.1): $0.3846$ to $1.0000$.
  3. Changing the instrument reversed the sign (Section 4): $-0.129870$ against $+0.319843$, the two agreeing at $0.019632$.
  4. Controlling for date halved it (Check 5.1): $0.319843$ to $0.165732$, $p=0.133$.
  5. The evidence rests on $25$ papers (Check 6.1): the later $18$ have no variance.
  6. A third instrument gave a third number (Check 7.1): $0.360163$, and $0.204077$ under control.

Closing: when something is said to have been measured, nothing guarantees that another way of measuring returns the same answer. What this paper hands over is one instance with numbers: one phrase operationalised two ways, agreeing at $0.019632$ and pointing in opposite directions. A third instrument returned a third number. The answer was fixed at the moment the proxy was chosen.

How it came about: the guess was that a larger count brings a named separator. The numbers lined up exactly so, without a single exception. Then a change of instrument reversed the sign, a control for date halved the correlation, and the stratum carrying the evidence turned out to have no variance in $18$ of the papers. What remains is not the guess but the fact that three instruments returned three answers. And this is the very objection this body of work has raised against others: that one word points at different things. This time the word was having named, and the thing it pointed at was the author. After Paper 200, this is the second refutation.

Revision Record

Second edition (September 2026): no claim, theorem or check has been altered from the first edition. In the English references, the lines citing earlier papers of this corpus still carried their Japanese titles; they now carry the English titles. Nothing of substance has changed, and nothing has been withdrawn.

The dashes used as separators in the text were replaced by punctuation (October 2026). No claim, number or reference was changed.

References

  1. Kendall, M. G. (1970). Rank Correlation Methods, 4th edition. London: Griffin.
  2. Good, P. (2005). Permutation, Parametric and Bootstrap Tests of Hypotheses, 3rd edition. New York: Springer.
  3. Simpson, E. H. (1951). The interpretation of interaction in contingency tables. Journal of the Royal Statistical Society B, 13.
  4. Yamagishi, Y. (2026). The Agreement of the Factors $2$ Is a Case of Distinct Roots [Paper 58]. Zenodo. 10.5281/zenodo.21597747
  5. Yamagishi, Y. (2026). The Same Character Table, and Still Not Isomorphic [Paper 152]. Zenodo. 10.5281/zenodo.22084202
  6. Yamagishi, Y. (2026). A Census of the Twos [Paper 157]. Zenodo. 10.5281/zenodo.22091931
  7. Yamagishi, Y. (2026). One Table, Two Correct Answers [Paper 183]. Zenodo. 10.5281/zenodo.22104230
  8. Yamagishi, Y. (2026). When a Proxy Becomes the Target It Stops Being a Proxy [Paper 186]. Zenodo. 10.5281/zenodo.22105530
  9. Yamagishi, Y. (2026). The Two Hundredth Census [Paper 200]. Zenodo. 10.5281/zenodo.22108829
  10. Yamagishi, Y. (2026). There Are Eight Plus Signs, and Seven of Them Become Real Addition in the Right Coordinate [Paper 228]. Zenodo. 10.5281/zenodo.22126254
  11. Yamagishi, Y. (2026). Before Asking Whether It Can Be Made into Addition, Ask Whether There Is a Binary Operation at All [Paper 241]. Zenodo. 10.5281/zenodo.22130189

Reference

Yamagishi, Y. (2026). Two Instruments, Opposite Signs [Paper 250]. YOI: https://www.yamagishiyuuki.com/yoi/250
DOI: 10.5281/zenodo.22160733
ORCID: 0009-0006-8587-3450

PDF (English) · PDF (Japanese) · Date proof of the English PDF (OpenTimestamps .ots) · SHA256SUMS

The record page for this paper (in Japanese, with the PDFs in each language and the date proof): YOI 250. This paper is a preprint and has not been peer reviewed.