THE SELECTION GRAMMAR

WHAT ARE YOU DOING?

Start with what you need to communicate. Find the distinction that matters. Then see the form do its work.

TRY THE GRAMMAR / 6 WAYS IN

03 / YOUR SELECTED ACT

Use Agreement.

N independently-derived values that must be identical — with a FAIL row.

CHECK BEFORE YOU COMPOSE

Are there N values derived separately that must be identical — and would a mismatch be a named failure?

This follows your choices through the published grammar. It is not an AI judgement about evidence you have not supplied.

A STUDY IN AGREEMENT

Agreement is something you check.

Two independent calculation paths should arrive at the same total. Introduce a mismatch and watch the verdict change.

PATH A / SUM

2 + 3 + 510
≡

PATH B / PRODUCT

2 × 510

PASS / TWO PATHS, THE SAME VALUE

Local arithmetic only: adding 2 + 3 + 5 and multiplying 2 × 5 both give 10. The mismatch control deliberately perturbs the second result.

READ THE COMPLETE GRAMMAR ↓
The complete selection grammar 37 ACTS / OPEN THE REFERENCE

How do I choose which HAUSE form to use?

Start from the act, not the shape. Are you asserting something, showing what holds it up, declining to assert, taking an object apart, showing something happen, or moving the reader on? Each act selects a form, and each form carries the test that tells it from its neighbour — a Claim owes evidence where a Statement carries the room; Evidence shows receipts where Agreement shows independent authorities agreeing. All 37 forms are reachable this way, or the build fails.

YOU ARE SAYING SOMETHING

The move is an assertion. What separates them is not tone — it is what the sentence owes.

Making the point the room is about

→ Statement

Would a reader quote this line if they quoted one line?

CLAIM INSTEAD — the assertion owes evidence, and should carry a status mark

OBSERVATION INSTEAD — you are describing what is there rather than what it means

Asserting something you believe and must defend

→ Claim

Could this be shown false? Does it need a status — open, supported, refuted?

STATEMENT INSTEAD — the line is a turn in the argument rather than a testable belief

Reporting what is actually there, before what it means

→ Observation

Can you name the thing being observed in three words? That label is the form.

CLAIM INSTEAD — you have moved from noticing to arguing

Answering the question a reader would type

→ Answer

Is there a forty-to-a-hundred-word paragraph a stranger could lift whole and still be right?

STATEMENT INSTEAD — you want the claim at display size rather than the plain answer beneath it

Opening the room and saying which room it is

→ Hero

Is this the first thing on the page? A second Hero is a second chapter, and probably a second URL.

Quoting someone else, verbatim

→ Excerpt

Are these words yours? If they are not, they keep their own markdown, their source and their trims.

SNIPPET INSTEAD — the quoted thing is code or terminal output rather than prose

YOU ARE SHOWING WHAT HOLDS IT UP

Evidence is not decoration and not a table of wins. These forms all exist to make a claim checkable by someone who does not trust you.

Showing the findings behind a claim

→ Evidence

Does at least one row refute something? A list with no failures is advertising.

CLAIM INSTEAD — you are stating the belief rather than the receipts

Showing that independent authorities agree

→ Agreement

Are there N values derived separately that must be identical — and would a mismatch be a named failure?

EVIDENCE INSTEAD — the findings are different facts rather than the same fact checked twice

Showing how a value was arrived at

→ Derivation

Does the value fold down a graded scale by caps, so nobody had to assert the result?

EVIDENCE INSTEAD — the number was measured rather than derived

Showing the code or output itself

→ Snippet

Is this verbatim, and would paraphrasing it be a lie?

Saying when this was published, and what it was built from

→ Provenance

Does this page make a claim someone might need to date?

Letting someone cite you

→ Citation

Is this a published object — something a reader could reference in their own work?

PROVENANCE INSTEAD — you are showing the record behind the work rather than the reference to it

YOU ARE DECLINING, OR LEAVING IT OPEN

The moves most systems have no vocabulary for — which is why systems without them guess.

Declining to assert something

→ Refusal

Is this the system working correctly by not answering? Then it is not an error state.

QUESTION INSTEAD — nobody is refusing anything — the matter is simply unresolved

Leaving something unresolved, at full size

→ Question

Would burying this in a roadmap be more comfortable than printing it? Print it.

Showing which alternatives exist, and refusing the absent one

→ Variants

Are these physically present forms of one identity — and does asking for a missing one deserve a designed refusal?

COMPARISON INSTEAD — the two things are interpretations rather than alternatives of one identity

Showing what has to be true before the next step

→ Ladder

Is each rung closed by its own criterion, in order, with no rung skippable?

TIMELINE INSTEAD — you are recording what happened rather than governing what may happen next

YOU ARE SHOWING WHAT SOMETHING IS MADE OF

The reader operates these. Each one takes an object apart in a different direction.

Cutting one object open and labelling its layers

→ Anatomy

Is everything disclosed at once, with nothing behind a click?

DECOMPOSITION INSTEAD — the reader should take it apart step by step rather than see it opened

Taking one thing apart, step by step

→ Decomposition

Does the reader control the pace? If the explanation should carry them, it is Unfolding.

UNFOLDING INSTEAD — the parts should arrive on their own — identical props, performed

Showing a physical layout to scale

→ ByteMap

Does the width of each field on screen mean its width in the artifact?

Showing one subject at several depths, on one URL

→ Lens

Are the explanation, the object and the clause the same subject rather than three subjects?

ANATOMY INSTEAD — the depths are parts of one object rather than registers of one explanation

Showing a field where only a subset ever activates

→ ExpertField

Is the point that most of it stays dormant, and which part lights depends on the input?

Showing a stream widened, judged, and brought back

→ Gating

Does the argument live in the widths — expand, judge channel by channel, compress?

Letting the reader query something real

→ Terminal

Is there an executor behind this, answering for real? A recording of a terminal is a Film.

Showing the path between connected ideas

→ FollowReveal

Does each step carry the relation that brought it there?

CONNECTION INSTEAD — you only need the doors out of the chapter, not the shape of the path

YOU ARE SHOWING SOMETHING HAPPENING

These play themselves, and rest on a designed final state — which is what a reader with reduced motion, or no JavaScript, actually receives.

Showing one object read two ways

→ Comparison

Should the reader drag between the interpretations themselves?

TRANSFORMATION INSTEAD — the change should perform itself — identical props, its cinematic sibling

Performing a change between two states of one thing

→ Transformation

Is it a staged swap rather than a crossfade? Two physical forms of one object never dissolve into each other.

COMPARISON INSTEAD — the pace belongs to the reader

Letting the parts of a thing arrive on their own

→ Unfolding

Same props as Decomposition — is the reader watching rather than operating?

Showing many inputs compiled down to one output

→ Compilation

Do the inputs lose their separateness by the end?

PROCESSION INSTEAD — one thing passes through stages and stays itself

Showing one thing pass through every stage in order

→ Procession

Is it the same object at the end, having been somewhere?

Showing a scale nobody can hold in their head

→ Magnitude

Does each arrival rescale the world — powers of ten rather than a bar chart?

Showing throughput against a fixed capacity

→ Channel

Is the constraint the conduit rather than the quantity?

Showing values snapped onto a lattice

→ Quantisation

Is the loss the subject — what rounding actually does, rather than a claim about it?

Separating an assertion from the record that changes it

→ StagedTransition

Does a held absence between exit and arrival explain the change in reading?

TEXTCORRECTION INSTEAD — the original wording should remain legible beside its correction

Showing a correction without erasing the original words

→ TextCorrection

Must the reader see both the withdrawn wording and its replacement?

STAGEDTRANSITION INSTEAD — the first state should leave before the new record arrives

Playing an actual film

→ Film

Does a real film exist? If not, the library holds the form and shows nothing.

YOU ARE MOVING THE READER ON

Where a chapter ends, and how a history is told.

Ending the chapter and opening the next

→ Connection

Does the sentence raise the next chapter's question rather than summarise this one?

Telling what happened, in order

→ Timeline

Does every line carry a date? If they do not, this is prose, not a history.

PROVENANCE INSTEAD — the history belongs to one published object rather than to the subject

THE HARD PART IS NEVER FINDING THE FORM

It is telling two nearly-right forms apart, and the two hardest live one rung from each other: Comparison and Transformation take identical props and differ only in who sets the pace. That is not an accident of the catalogue — it is the one distinction the whole three-mode split turns on, so it is worth seeing rather than reading.

IDENTICAL PROPS — ONE DISTINCTION

the same two states of one object, offered two ways

COMPARISON — AN INSTRUMENTTRANSFORMATION — A PERFORMANCE
  • The reader, with their hand
  • Drags between the interpretations
  • Wherever they left it
  • When the change is temporal, and they are being carried

the same two states of one object, offered two ways — as comparison — an instrument: the reader, with their hand, drags between the interpretations, wherever they left it, when the change is temporal, and they are being carried. As transformation — a performance: the author, at the hause stagger, watches a staged swap, never a crossfade, designed, and carrying the whole point, when the reader is studying rather than being led.

WHEN NOTHING HERE IS THE ACT YOU ARE MAKING

NO FORM ESTABLISHED

requested a semantic act the library does not hold

available 37 acts, each reachable from what you are doing

Build it in the page that needs it. It earns the library on the third rung, when a second exhibition needs the same act.

no form established — requested a semantic act the library does not hold; available 37 acts, each reachable from what you are doing. Build it in the page that needs it. It earns the library on the third rung, when a second exhibition needs the same act.

HAUSE · THE SPECIMEN BOOK / 2026

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