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Accounts receivable (Tables) | 12 Months Ended
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Sep. 30, 2022
Subclassifications of assets, liabilities and equities [abstract] |
Disclosure of accounts receivable |
| As at September 30, 2022 | As at September 30, 2021
| $ | $
Trade (Note 31) | 1,106,187 |  | 938,417 |
R&D and other tax credits 1 | 163,608 |  | 187,347 |
Other | 93,750 |  | 105,688 |
| 1,363,545 |  | 1,231,452 |
1 R&D and other tax credits were related to government programs mainly in Canada, the United States, and France

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