| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > fssd | GIF version | ||
| Description: Expanding the codomain of a mapping, deduction form. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| fssd.f | ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) |
| fssd.b | ⊢ (𝜑 → 𝐵 ⊆ 𝐶) |
| Ref | Expression |
|---|---|
| fssd | ⊢ (𝜑 → 𝐹:𝐴⟶𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fssd.f | . 2 ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) | |
| 2 | fssd.b | . 2 ⊢ (𝜑 → 𝐵 ⊆ 𝐶) | |
| 3 | fss 5546 | . 2 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝐵 ⊆ 𝐶) → 𝐹:𝐴⟶𝐶) | |
| 4 | 1, 2, 3 | syl2anc 415 | 1 ⊢ (𝜑 → 𝐹:𝐴⟶𝐶) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ⊆ wss 3220 ⟶wf 5373 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 df-f 5381 |
| This theorem is used by: mapsnd 6970 mapss 6973 ac6sfi 7202 fseq1p1m1 10501 seqf1oglem2 10957 sswrd 11313 resqrexlemcvg 11785 resqrexlemsqa 11790 climcvg1nlem 12115 fsumcl2lem 12165 nninfctlemfo 12817 ennnfonelemh 13295 gzsumress 13712 gzsumwsubmcl 13801 gzsumsubmcl 14142 gsumsubmclfi 14163 gsumressfi 14167 cnrest2 15337 cnptoprest2 15341 cncfss 15684 limccnpcntop 15776 dvidre 15798 dvcoapbr 15808 dvef 15828 plyaddlem 15850 plymullem 15851 plycjlemc 15861 plycn 15863 dvply2g 15867 upgruhgr 16352 umgrupgr 16353 upgr1edc 16362 umgrislfupgrdom 16372 usgrislfuspgrdom 16431 isomninnlem 17079 trilpolemisumle 17087 iswomninnlem 17099 ismkvnnlem 17102 |
| Copyright terms: Public domain | W3C validator |