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Proofgold Proof
pf
Apply add_nat_SL with
u31
,
u32
,
λ x0 x1 .
x1
=
u64
leaving 3 subgoals.
The subproof is completed by applying unknownprop_723dd01f4e3b6ead0b114b6935717dcf3e97da79c873ecf977038ff266453fe1.
The subproof is completed by applying unknownprop_e20297641bb65d9e51ebac2e053948365a3f53b65d223d41920ce90b2e26b533.
set y0 to be
ordsucc
(
add_nat
u31
u32
)
set y1 to be
ordsucc
u63
Claim L0:
∀ x2 :
ι → ο
.
x2
y1
⟶
x2
y0
Let x2 of type
ι
→
ο
be given.
Assume H0:
x2
(
ordsucc
u63
)
.
set y3 to be
λ x3 .
x2
Apply unknownprop_ae094a61fe658771a881886265e3856ab61a625161665623585771d82a968477 with
λ x4 x5 .
y3
(
ordsucc
x4
)
(
ordsucc
x5
)
.
The subproof is completed by applying H0.
Let x2 of type
ι
→
ι
→
ο
be given.
Apply L0 with
λ x3 .
x2
x3
y1
⟶
x2
y1
x3
.
Assume H1:
x2
y1
y1
.
The subproof is completed by applying H1.
■