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Axiom ax-L9-multr 26
Description: Right '' substitution.
Assertion
Ref Expression
ax-L9-multr (𝑡 = 𝑢 → (𝑤𝑡) = (𝑤𝑢))

Detailed syntax breakdown of Axiom ax-L9-multr
StepHypRef Expression
1 term-t . . 3 term 𝑡
2 term-u . . 3 term 𝑢
31, 2wff-equals 6 . 2 wff 𝑡 = 𝑢
4 term-w . . . 4 term 𝑤
54, 1term-mult 5 . . 3 term (𝑤𝑡)
64, 2term-mult 5 . . 3 term (𝑤𝑢)
75, 6wff-equals 6 . 2 wff (𝑤𝑡) = (𝑤𝑢)
83, 7wff-imp 10 1 wff (𝑡 = 𝑢 → (𝑤𝑡) = (𝑤𝑢))
Colors of variables: wff objvar term class
This axiom is referenced by:  submultr-P5  650
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