---
title: Indian mathematicians treated zero as a real number, and the digits… — Ancient India: Ashoka, zero and our numbers · tree and pragmatics
description: Indian mathematicians treated zero as a real number, and the digits 0 to 9 on your calculator were invented in India. A sentence of the lesson «Ancient India: Ashoka, zero and our numbers» of the history course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Ancient India: Ashoka, zero and our numbers, sentence 4

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Indian mathematicians treated zero as a real number, and the digits 0 to 9 on your calculator were invented in India.

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**What happens:** treat, invent · **To what, where:** Indian mathematicians, India

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This is a sentence of the lesson «Ancient India: Ashoka, zero and our numbers» of the history 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: what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:history:008-ancient-india-ashoka-zero-and-our-numbers.lesson:4
# text = Indian mathematicians treated zero as a real number, and the digits 0 to 9 on your calculator were invented in India.
# source = school lesson (ours)
# course = history
# lesson = 008-ancient-india-ashoka-zero-and-our-numbers.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 ×3
1	Indian	Indian	ADJ	JJ	Degree=Pos	2	amod	_	_
2	mathematicians	mathematician	NOUN	NNS	Number=Plur	3	nsubj:pass	_	Agree=R5-strong|Haiku=20:nsubj:pass
3	treated	treat	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	Agree=R5-strong|Haiku=2:acl|HaikuPos=VERB:VBN:Tense=Past|VerbForm=Part|Voice=Pass
4	zero	zero	ADV	RB	_	3	advmod	_	_
5	as	as	ADP	IN	_	8	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	real	real	ADJ	JJ	Degree=Pos	8	amod	_	_
8	number	number	NOUN	NN	Number=Sing	3	obl	_	_
9	,	,	PUNCT	,	_	12	punct	_	_
10	and	and	CCONJ	CC	_	12	cc	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	digits	digit	NOUN	NNS	Number=Plur	2	conj	_	_
13	0	0	NUM	CD	NumForm=Digit|NumType=Card	12	flat	_	_
14	to	to	ADP	IN	_	15	case	_	_
15	9	9	NUM	CD	NumForm=Digit|NumType=Card	13	nmod	_	_
16	on	on	ADP	IN	_	18	case	_	_
17	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	18	nmod:poss	_	_
18	calculator	calculator	NOUN	NN	Number=Sing	13	nmod	_	_
19	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	20	aux:pass	_	_
20	invented	invent	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	conj	_	Agree=R5-strong|Haiku=0:root
21	in	in	ADP	IN	_	22	case	_	_
22	India	India	PROPN	NNP	Number=Sing	20	obl	_	_
23	.	.	PUNCT	.	_	20	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **treat** | past · passive |  | Indian mathematicians and the digits |  |  |  | as a real number; zero *property* | vn characterize-29.2 «NP V NP S\_ING»: subject=Theme as number=Attribute |
| 2 | **invent** | past · passive |  |  |  | India |  |  | vn create-26.4-1 «NP V» |

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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:history:008-ancient-india-ashoka-zero-and-our-numbers.lesson:4`.

**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 ×3. **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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