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CLASSICAL FIRST-ORDER LOGIC WITH EQUALITY
Predicate calculus with equality: Auxiliary axiom schemes (4 schemes)
Axiom scheme ax-12 (Substitution)
sps
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2sp
Metamath Proof Explorer
Ascii
Structured
Theorem
sps
Description:
Generalization of antecedent.
(Contributed by
NM
, 5-Jan-1993)
Ref
Expression
Hypothesis
sps.1
⊢
(
𝜑
→
𝜓
)
Assertion
sps
⊢
( ∀
𝑥
𝜑
→
𝜓
)
Proof
Step
Hyp
Ref
Expression
1
sps.1
⊢
(
𝜑
→
𝜓
)
2
sp
⊢
( ∀
𝑥
𝜑
→
𝜑
)
3
2
1
syl
⊢
( ∀
𝑥
𝜑
→
𝜓
)