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TrueEqvTrueChopTrue

⊢ true ≡true ; true TrueEqvTrueChopTrue

Proof:

1
⊢ true ; true ⊃true
Prop
2
⊢ true ⊃true
DiIntro
3
⊢ true ⊃true ; true
2, def. of 
4
⊢ true ≡true ; true
1, 3,Prop

qed

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2023-09-12
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