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Mirrors > Home > HOLE Home > Th. List > ax-eqtypi | Unicode version |
Description: Deduce equality of types from equality of expressions. (This is unnecessary but eliminates a lot of hypotheses.) (New usage is discouraged.) (Contributed by Mario Carneiro, 7-Oct-2014.) |
Ref | Expression |
---|---|
eqcomi.1 |
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eqcomi.2 |
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Ref | Expression |
---|---|
ax-eqtypi |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | hal |
. 2
type ![]() | |
2 | tb |
. 2
term ![]() | |
3 | 1, 2 | wffMMJ2t 12 |
1
wff ![]() ![]() ![]() |
Colors of variables: type var term |
This axiom is referenced by: eqtypi 78 |
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