Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > ordfr | GIF version |
Description: Epsilon is well-founded on an ordinal class. (Contributed by NM, 22-Apr-1994.) |
Ref | Expression |
---|---|
ordfr | ⊢ (Ord 𝐴 → E Fr 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zfregfr 4558 | . 2 ⊢ E Fr 𝐴 | |
2 | 1 | a1i 9 | 1 ⊢ (Ord 𝐴 → E Fr 𝐴) |
Colors of variables: wff set class |
Syntax hints: → wi 4 E cep 4272 Fr wfr 4313 Ord word 4347 |
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-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 ax-setind 4521 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-br 3990 df-opab 4051 df-eprel 4274 df-frfor 4316 df-frind 4317 |
This theorem is referenced by: ordwe 4560 |
Copyright terms: Public domain | W3C validator |