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RELATED PARTY TRANSACTIONS (Details 2)
9 Months Ended 12 Months Ended
Apr. 30, 2021
Jul. 31, 2020
Expected dividends 0.00%  
Risk free interest rate 0.01% 0.11%
Expected volatility 234.84% 240.18%
Maximum [Member]    
Expected term (years) 5 months 27 days  
Risk free interest rate 0.13%  
Expected volatility 283.00%  
Minimum [Member]    
Expected term (years) 2 months 27 days  
Risk free interest rate 0.07%  
Expected volatility 236.00%