predicate calculus

chrislav

Junior Member
Joined
Jun 22, 2017
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138
Given:
1) x[x=x]\forall x[x=x]2)[P(0)x(P(x)    P(x))]    x(P(x))[P(0)\wedge\forall x(P(x)\implies P(x'))]\implies\forall x(P(x))Then prove in the predicate calculus:

x[(x=0y(x=y)]\forall x[(x=0\vee\exists y( x=y')]
Here the P((x) is [(x=0y(x=y)][(x=0\vee\exists y( x=y')]
You can consider the above as a challenge question
 
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