---
title: In strict logic "if A, then B" says nothing about what happens when… — "If... then..." and its traps · tree and pragmatics
description: In strict logic "if A, then B" says nothing about what happens when A is false; in everyday deals like "if you finish, you can play", people usually mean "only if". Who acts: A, you, people. A sentence of the lesson «"If... then..." and its traps» of the world course of Mova's primary school with it
---

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# "If... then..." and its traps, sentence 17

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In strict logic "if A, then B" says nothing about what happens when A is false; in everyday deals like "if you finish, you can play", people usually mean "only if".

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**Who acts:** A, you, people · **What happens:** say, happen, be, finish, play, mean · **To what, where:** nothing, strict logic · **Speech:** someone speaks here

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This is a sentence of the lesson «"If... then..." and its traps» of the world course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (A, you, people), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:184-if-then-and-its-traps.lesson:17
# text = In strict logic "if A, then B" says nothing about what happens when A is false; in everyday deals like "if you finish, you can play", people usually mean "only if".
# source = school lesson (ours)
# course = world
# lesson = 184-if-then-and-its-traps.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1, R6-punct-agree ×1, R7-rel-agree ×2
1	In	in	ADP	IN	_	3	case	_	_
2	strict	strict	ADJ	JJ	Degree=Pos	3	amod	_	_
3	logic	logic	NOUN	NN	Number=Sing	11	obl	_	_
4	"	"	PUNCT	``	_	3	punct	_	_
5	if	if	SCONJ	IN	_	11	mark	_	_
6	A	A	PROPN	NNP	Number=Sing	11	nsubj	_	_
7	,	,	PUNCT	,	_	6	punct	_	Agree=R6-punct-agree|Haiku=9:punct
8	then	then	ADV	RB	PronType=Dem	9	advmod	_	_
9	B	B	PROPN	NNP	Number=Sing	6	flat	_	_
10	"	"	PUNCT	''	_	6	punct	_	_
11	says	say	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
12	nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	11	obj	_	_
13	about	about	SCONJ	IN	_	14	mark	_	_
14	what	what	PRON	WP	PronType=Int	12	nmod	_	_
15	happens	happen	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	acl:relcl	_	_
16	when	when	SCONJ	WRB	_	19	mark	_	_
17	A	A	PROPN	NNP	Number=Sing	19	nsubj	_	_
18	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	cop	_	_
19	false	false	ADJ	JJ	Degree=Pos	15	advcl	_	_
20	;	;	PUNCT	:	_	37	punct	_	_
21	in	in	ADP	IN	_	23	case	_	_
22	everyday	everyday	ADJ	JJ	Degree=Pos	23	amod	_	Agree=R7-rel-agree|Haiku=23:compound|HaikuPos=NOUN:NN:Number=Sing
23	deals	deal	NOUN	NNS	Number=Plur	37	obl	_	_
24	like	like	SCONJ	IN	_	32	mark	_	Agree=R7-rel-agree|Haiku=32:case
25	"	"	PUNCT	``	_	32	punct	_	_
26	if	if	SCONJ	IN	_	28	mark	_	_
27	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	28	nsubj	_	_
28	finish	finish	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	32	advcl	_	_
29	,	,	PUNCT	,	_	28	punct	_	_
30	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	32	nsubj	_	_
31	can	can	AUX	MD	VerbForm=Fin	32	aux	_	_
32	play	play	VERB	VB	VerbForm=Inf	37	advcl	_	_
33	"	"	PUNCT	''	_	32	punct	_	_
34	,	,	PUNCT	,	_	37	punct	_	_
35	people	people	NOUN	NNS	Number=Plur	37	nsubj	_	_
36	usually	usually	ADV	RB	_	37	advmod	_	_
37	mean	mean	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	11	parataxis	_	_
38	"	"	PUNCT	``	_	41	punct	_	_
39	only	only	ADV	RB	_	40	advmod	_	Agree=R5-strong|Haiku=41:advmod
40	if	if	SCONJ	IN	_	41	mark	_	_
41	"	"	PUNCT	''	_	37	punct	_	_
42	.	.	PUNCT	.	_	11	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: assert* | present | A | nothing |  | strict logic |  |  | vn pronounce-29.3.1 «NP V NP PP.manner»: agent=Agent nothing=Theme in logic=Manner |
| 2 | **happen** | present |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 3 | **is** | present | A |  |  |  |  | false *property* | tree rules |
| 4 | **finish** *a condition, not said to happen, in a quote* | present | you |  |  |  |  |  | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |
| 5 | **play** *in a quote* | can | you |  |  |  |  |  | vn performance-26.7-1 «NP V»: agent=Agent |
| 6 | **mean** | present | people |  |  |  |  | in everyday deals; usually *property* | vn representation-110.1 «NP V NP PP.attribute»: agent=Pivot in deal=Attribute |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:world:184-if-then-and-its-traps.lesson:17`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1, R6-punct-agree ×1, R7-rel-agree ×2. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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