The word Presuposing is misspelled against Presupposing, which is present continuous of "Presuppose"
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Presupposing has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings presu & osing which should not be misspelled with single 'P'
Wrong Spelling:  presu-p-osing 
Correct Spelling:  presu-pp-osing 
Check more misspelled words of Presupposing to spell it correct.