Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > pm11.07 | Structured version Visualization version Unicode version |
Description: Axiom *11.07 in [WhiteheadRussell] p. 159. The original reads: *11.07 "Whatever possible argument may be, is true whatever possible argument may be" implies the corresponding statement with and interchanged except in " ". Under our formalism this appears to correspond to idi 2 and not to sbcom4 2285 as earlier thought. See https://groups.google.com/d/msg/metamath/iS0fOvSemC8/M1zTH8wxCAAJ. (Contributed by BJ, 16-Sep-2018.) (New usage is discouraged.) |
Ref | Expression |
---|---|
pm11.07.1 |
Ref | Expression |
---|---|
pm11.07 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm11.07.1 | 1 |
Colors of variables: wff setvar class |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |