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Proof step 36 from proof cont-monotone (previous step)

S(x0), f(S0)(x), S0 ⊆ S, f(λ x0. ∃ n. (n = 0 ⊃ S0;S)(x0))(x) ⊦ ∃ n. (n = 0 ⊃ S0;S)(x0), f(S)(x)

User applied rule exists right

And closed the goal!

Rule argument

pos: right 1 terms: 1 abort: F discard: T computed: F

Additional information

Used terms: 1