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Mirrors > Home > ILE Home > Th. List > nfmo1 | Unicode version |
Description: Bound-variable hypothesis builder for "at most one". (Contributed by NM, 8-Mar-1995.) (Revised by Mario Carneiro, 7-Oct-2016.) |
Ref | Expression |
---|---|
nfmo1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-mo 2023 | . 2 | |
2 | nfe1 1489 | . . 3 | |
3 | nfeu1 2030 | . . 3 | |
4 | 2, 3 | nfim 1565 | . 2 |
5 | 1, 4 | nfxfr 1467 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wnf 1453 wex 1485 weu 2019 wmo 2020 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-4 1503 ax-ial 1527 ax-i5r 1528 |
This theorem depends on definitions: df-bi 116 df-nf 1454 df-eu 2022 df-mo 2023 |
This theorem is referenced by: moanmo 2096 euexex 2104 nfrmo1 2642 mob 2912 morex 2914 funimaexglem 5281 |
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